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FILE NAME: Phenolic Resins (PHR) DATE: 1949 June 1 DOC#: PHR037 DOCUMENT DESCRIPTION: Dept of Commerce - Commercial Standard CS117-49, Mineral Wool Insulation for Heated Industrial Equipment t\ 6 3 S""' STACKS 4- MINERAL WOOL INSULATION FOR HEATED INDUSTRIAL EQUIPMENT (Second Edition) COMMERCIAL STANDARD CS117-49 [Supersedes CS117--44] ) Effective Date for New Production From June 1, 1949 i js I \ 4 i A 3( j iI UNITED STATES DEPARTMENT OF COMMERCE 4 CHARLES SAW YER, Secretary F o r Mile b y t h e S u p e r in t e n d e n t o f D o c u m e n t s , U . S . G o v e r n m e n t P r in t in g O ffice W a s h in g to n 25, D . Ce - P r ic e 15 c e n t s COM M ODITY STANDARDS Simplified Practice Recommendations and Commercial Standards are developed by manufacturers, distributors, and users in cooperation with the Commodity Standards Division of the National Bureau of Standards. The purpose of Simplified Practice Recommendations is to eliminate avoidable waste through the establishment of standards of practice for stock sizes and varieties of specific commodities that currently are in general production and demand. The purpose of Commercial Standards is to establish standard methods of test, rating, certification, and labeling of commodities, and to provide uniform bases for fair competition. The adoption and use of a Simplified Practice Recommendation or Commercial Standard is voluntary. However, when reference to a Commercial Standard is made in contracts, labels, invoices, or adver tising literature, the provisions of the standard are enforceable through usual legal channels as a part of the sales contract. A Simplified Practice Recommendation or Commercial Standard originates with the proponent industry. The sponsors may be manufacturers, distributors, or users of the specific product. One of these three elements of industry submits to the Commodity Stand ards Division the necessary data to be used as the basis for developing a standard of practice. The Division, by means of assembled confer ences or letter referenda, or both, assists the sponsor, group in arriving at a tentative standard of practice and thereafter refers it to the other elements of the same industry for approval or for constructive criticism that will be helpful in making any necessary adjustments. The regu lar procedure of the Division assures continuous servicing of each effective Simplified Practice Recommendation and Commercial Stand ard, through review and revision, whenever, in the opinion of the in dustry, changing conditions warrant such action. Simplified Practice Recommendations and Commercial Standards are printed and made available by the Department of Commerce through the Government Printing Office. COMMERCIAL STANDARD FOR MINERAL WOOL INSULATION FOR HEATED INDUSTRIAL EQUIPM ENT In September 1943 the Industrial Mineral Wool Institute proposed the establishment of a commercial standard for mineral wool insula tion for heated industrial equipment. This led to the development of a recommended standard, which was subsequently accepted by the trade and finally issued as Commercial Standard CS117-44, Mineral Wool: Blankets, Blocks, Insulating Cement, aqd Pipe Insulation for Heated Industrial Equipment. A recommended revision of this standard was circulated on March 1, 1949, to the trade for written acceptance. Those concerned have since accepted and approved for promulgation the standard shown herein. Project Manager: J. W. M edley, Commodity Standards Division, National Bureau of Standards. Technical Adviser: H . E . R obinson, Building Technology Division, National Bureau of Standards. u COMMERCIAL STANDARD CSI 17-49 for M IN ER A L WOOL INSULATION FOR H EA TED IN D U STRIA L EQ U IPM EN T (SECOND ED ITIO N ) PURPOSE L The purpose of this standard is (a) to establish minimum speci fications for insulating heated surfaces with mineral wool for the guidance of manufacturers, distributors, installer?, contractors, engi neers, and users; (b) to avoid delays and misunderstandings; and (c) ito provide a standard basis for certifying quality of material and installation. SCOPE 2. This standard covers minimum physical requirements and standards for mineral wool in the form of loose and granulated wool, felts, blankets, industrial batts, blocks or boards, pipe insulation, and insulating cement, for insulating heated industrial equipment. I t also includes thicknesses of insulation required for various operating temperatures, recommended methods of installation, and a method of guaranteeing compliance with the standard. The range of types, classes, thermal conductivities, temperature limits, and sizes of min eral wool products for insulating heated industrial equipment are shown in table 1. DEFINITIONS 3. Mineral wool.--Miperal wool insulation is rock, slag, or glass processed from a molten state into fibrous form. 3a. Loose.--Mineral wool as originally processed and collected in a fluffy moss without regard to form or dimension. 3b. Granulated.--Mineral wool mechanically processed into nodules. 3c. FeU.--Mineral wool with binder added, manufactured in semi rigid form and furnished in flat sheets or rolls. 3d. Blanket.--Mineral wool with or without'binder, reinforced on one or both sides with various types of confining media and suitably bound together. / 3e. Industrial batt.--Mineral wool without binder, manufactured in flat sheets or rolls. 1 2 Commercial Standard CS117-49 3f. Block or board.--Mineral wool in rigid form, with binder, with or without surface coating, and normally furnished in fiat rectangular pieces. 3g. Pipe insulation, blanket-type.--Mineral wool reinforced on one or both sides by various types of confining media and suitably bound together to form a nonrigid pipe insulation. 3h. Pipe insulation, molded-type.--Mineral wool combined with other ingredients to form a rigid pipe insulation. 3i. Insulating cement.--A dry mixture of mineral wool and other ingredients which, when mixed together with water to proper trowel ing consistency, is suitable for application on heated equipment. REQUIREMENTS 4. Insulation.--The insulation shall Ire mineral wool in one of the following forms: loose, granulated, fell, blanket, industrial batt, block or board, pipe insulation, blanket- or molded-type, or insulating cement. 4a. Applicability.--Materials shall be of a type having physical characteristics suited to their intended use. 4b. Thermal conductivity.--The thermal conductivity (/c), expressed as Btu per hour per square foot per degree Fahrenheit for a thickness of 1 in., shall not exceed the values shown in table 1 for each product at the mean temperature shown. The thermal conductivity shall be determined as described in test method X I of Commerical Standard CS131-46, or later revision. 4c. Density.--The installed density shall be as recommended by the manufacturer and shall comply with the thermal conductivity specified in paragraph 4b. The density shall be determined in accord ance with the test methods described in Commercial Standard CS131-- 46, or later revision, as follows: Test method Insulating cem ent___________________ _________________________ IV Industrial b att, blanket, felt, and blanket-type pipe insulation___ V(a) Block or board insulation_______________________________________ V(b) M olded-type pipe insulation____________________________________ V(c) 4d. Incombustibility.--All mineral wool insulation shall meet the requirements of the incombustibility classification when tested in accordance with test method VI of Commercial Standard CS131--46, or later revision. 4e. Temperature resistance.--The mineral* wool insulation, when tested at the temperature of intended usage in accordance with test method X of Commercial Standard CS131-46, or later revision, shall show no changes which adversely affect its serviceability, provided that the temperature of use doc-s not exceed the maximum tempera ture limit of the product as listed in table 1. 4f. Classes.--Mineral wool products for heated surfaces shall be listed in classes having maximum temperature limits as follows: Class A....................... B............................ C.......,,................... D ............................ ............................ F 600 1, 000 1,200 1,600 1,800 Mineral Wool Insulation .(TIigh Temperatures) 3 T a b l e 1. Types, conductivities, classes, and u n it sizes of mineral wool products Typos Maximum ther mal conductivity (k) a t 0 F mean temperature Maximum recommended temperature limit 200 300 400 Class 5 F up to-- U nit sises Loose wool. G ranulated wool. F e lts ................... . B lankets............. Industrial hatt?.. 0.37 0.46 0.55 f: .37 .46 .55 <3:: .44 . 55 .41 .47 .53 .35 .47 .60 Blocks or boards. .50 .53 .56 Pipe insulation, blanket-type. } .47 .53 Pipe insulation, molded-typo. }.40 .40 .52 Insulating cement. .70 .75 .80 1,000 r ackaged In bags containing u p to 40 lb 1,600 each. 1,000 fPackaged in bags containing up to 40 lb 1,600. \ each. 600 1 to 4 in. thick by 24 in. wide by 30 or 46 in. long. 1,000 fl to 6 in. thick b y 24 in. wide b y 48 or 06 1,200 \ in. long. 1,000 1, 200 l to 4 In. thick by 24 in. wide by 48 in. . long. 600 1,200 1,000 1,000 1,200 600 1,200 1,600 ( Blocks: 1 to 4 in. thick by 6 or 12 in. wide b y 18 or 36 in. long. Boards: 1 to 3 in. thick b y 12 to 36 In. wide by 36 or 48 in. long. fI to 4 In. thick b y 24 in. long, fabricated to fit 2-in. and laxger pipe. 'H to 4 in. thick b y 36 In. long to fit 14- to jpa1c4k-aing.eadndinlabraggesr cstoenetlapinipinegsiScOesl.b each. 4g. Dimensions.--All measurements of dimensions shall be made in accordance with Commercial Standard CS131-46, or later revision. 4h. Felt.--For felt mineral wool, a minus tolerance of %in. shall be permitted in all dimensions. 4i. Blankets.--Blankets shall be supported on one or both sides by metal lath, wire netting, canvas, paper, or other facing material secured by wire or cord ties through the material. The types of facing mate rials shall be specified by the purchaser. For installations on which the subsequent application of insulating cement is specified, expanded metal lath shall be furnished on one side of the blankets. Standard sizes of blankets shall be as listed in table 1 and no dimension shall be less than that specified. 4j. Industrial baits.--Standard sizes of industrial batts shall be as listed in table 1 and no dimension shall be less than that specified. 4k. Blocks or boards.--Blocks or boards shall be manufactured with square comers and with sides and ends parallel. Standard sizes shall be as listed in table 1, subject to a tolerance of plus or minus %in. in all dimensions. 41. Pipe insulation, blanket-type.--Blahket-tvpe pipe insulation shall be secured on one or both sides by metal lath, wire netting, or other facing material secured by wire or cord ties through the material. I t shall be furnished in a single layer, in sections 24 in. long, and for standard pipe sizes. The dimensions shall be such that a snug fit will be obtained when the insulation is installed on the pipe at the specified thickness. 4 Commercial Standard C S117-49 4m. Pipe insulation, moldcd-type.--Moldcd-typc pipe insulation shall be furnished in single- or double-layer thicknesses, as shown in table 2, and in sections or segments 36 inf long for standard pipe sizes. A tolerance of plus or minus X in. in all dimensions shall be permitted. T able 2. M oldcd-type pipe in su la tio n -- thicknesses* fo r standard-w eight steel p ip e sizes Pipe size Nominal Actual 0 . D. Standard thickness in, in. in. x 0.840 9S H 1.050 9S 1 1.315 JS IX 1. Ort) `/ i IX 1.900 >6 2 2.375 US, 2X 2. 875 US, 3 3. 500 US, 3X 4.000 US, 4 4. 500 US 4M >> 5. oon US 5 5. 503 US 6 6. 025 US 7 b 7. 625 US 8 8.623 US 9b 9. 625 US 10 10. 750 US 11 b 11. 750 US 12 12. 750 US 14 and u p US Double standard thickness in. 194 194 194 1*4 194 294 2Me 2Me 2Me 294 294 294 294 29S 294 29S 294 294 3 3 I n addition to the thicknesses specified above, moldcd-type pipe insulation m ay be m anufactured in thicknesses of 1, 1>$, 2. 2H. 3, and 4 in. for all nominal pipe sizes. b These pipe sizes are not listed as standard for steel pipe in Simplified Practice Recommendation R57-32, Wrought-iron and Wrought-steelPlpe, Valves, and Fittings. 4n. Insulating cement.--When tested in accordance with test method I of Commercial Standard CS131-46, or later revision, insu lating cement shall show an adhesion to steel of not less than 3 lb per sq in. When tested in accordance with test method IV of Com mercial Standard CS131--46, or later revision, insulating cement shall show a volume change on drying of not more than 20 percent and a dry coverage of not less than 45 sq ft, 1 in. thick per 100 lb of dry cement. 5. Auxiliary materials. 5a. Finishing cements may be used to provide a smooth, hard surface over insulating materials in locations not subject to excessive moisture or abrasion. 5b. Asphaltic weatherproof finish may be used to provide a water tight protective finish over insulating materials in locations where excessive moisture or abrasion is encountered or wherever else specified within its temperature limit. This asphaltic finish shall consist of a fibrated asphalt emulsion, which, for weatherproofing purposes, shall be applied to a minimum dry thickness of %in. (See par. 17c (1) and similar references to weatherproof finish over the various product forms of mineral wool.) 5c. Miscellaneous materials, such as adhesives, attachment devices, canvas, paper, metal fabrics, asbestos-cement sheets, roofing felt, Mineral Wool Insulation (H igh Temperatures) 5 paint, sheet metal, etc., shall be of a type and quality satisfactory for use in the applications hereinafter described. RECOMMENDED INSTALLATION REQUIREMENTS 6. The following represents recommended installation requirements, based upon long experience, for maximum service in the use of mineral wool products for insulating heated industrial equipment. 7. Piping, vessels, boilers, and all other operating equipment shall be inspected and tested for leaks, mechanical defects and operations, and repairs and adjustments completed before applying insulation, to avoid the necessity of its subsequent removal for such purposes. 8. All mineral wool insulating products and accessory materials shall be installed in a neat, workmanlike manner in accordance with the following recommendations and subject to the approval of the purchaser. ' v APPLICATION (GENERAL) 9. Selection of mineral wool products. 9a. The different types of mineral wool products described in para graphs 3 and 4 are designed to serve a wide range of operating condi tions for most tvpes of heated equipment. In many cases, several forms of mineral wool products will perform equally satisfactorily, hence their choice should be based on. a consideration of the specific equipment and operating conditions, together .with the pertinent performance properties and relative costs. (1) Loose wool, granulated wool, and industrial batts usually are low in coat from a material standpoint. They re quire a structural means of retention and protective finish such as an exterior metal shell or masonry. (2) Mineral wool felts and blankets combine low material cost and excellent thermal value with a degree of product rigidity. They are not designed for load-bearing service. (3) Mineral wool blocks or boards are rigid, have higher compressive strength, and thus are installed, for example, on the top of heated equipment where workmen may have to cross the insulation for maintenance reasons. (4) Blanket-type mineral wool pipe insulation, characterized by its flexibility and high thermal efficiency, is manu factured in sizes to fit pipe lines 2 in. and up. (5) Molded-type mineral wool pipe insulation has rigidity and strength and is preformed to facilitate installation on heated pipe lines. (6) Mineral wool insulating cement is used to even surfaces on blanket and block or board insulation, after applica tion on the equipment, and to form a suitable base on which to apply a finishing coat. Because of its good adhesive strength, mineral wool insulating cement may be built up to desired thickness on valves, fittings, ana ` equipment of irregular shape. 10. Thickness of insulation. 10a. The selection of the economical thickness of mineral wool insulation to be installed is governed largely by the operating temper- 6 Commercial Standard C S117-49 aturo maintained, the cost of heat delivered, the number of hours operated per year, and by the effectiveness and the total cost of the applied insulation. Other factors which determine insulation thick ness are the maintenance of precise temperature control, protection against damage by corrosion, freezing, or lire, and personal safety of workmen. 10b. The thickness of blankets, blocks or boards, insulating cement, and pipe insulation to be applied for various operating conditions shall be not less than recommended in table 3, unless otherwise approved by the purchaser. The installed thicknesses of felts, indus trial batts, loose wool, and granulated wool shall be the same as the recommended minimum thicknesses for blankets in table 3, within the temperature limits designated in table 1, and consistent with the thermal performance required. 10c. External surfaces of heated multilayer brick constructions shall be insulated to a thickness no greater than th at which will result in a safe temperature and a safe temperature gradient for all materials used in the composite construction. 11. Fastenings and supports. 11a. Adequate means shall be provided to maintain the insulation in contact with the surface in order to prevent accidental displacement. Suitable fastenings and supports for this purpose shall be agreed upon by the purchaser and applying contractor. lib . Types, extent, number, and spacing of fastenings and supports ivill be determined by the nature, shape, and position of the heated surface, the type of insulation, the type of surface finish to be applied, md by the service conditions, such as vibration, weather, corrosive umes, wetting, or mechanical injury. (1) When specified the insulation shall be fully enclosed. The enclosure may consist of metal sheets or a masonry wall spaced away from the heated surface to support the insulation externally. (See figs. 1 and 2.) (2) On vertical surfaces, blankets and blocks or boards may be supported by (a) horizontal angles attached to the surface at suitable intervals (see figs. 1 and 3), (b) wires attached perpendicular to the surface over which insulation may be impaled (see fig. 4), (c) studs inserted through the insula tion and welded by gun-type equipment to the metal sur face behind (see fig. 5), (d) bolts welded to or inserted through the metal surface (see figs. 6 and 7), (e) screws (see fig. 8), or (f) tie wires (see fig. 9). Lacing wires at the edges or over the face of the insulation may be em ployed to secure it to the supports, and circumferential bands or wires may be installed over the insulation to insure permanent contact. (See fig. 10.) (3) On horizontal surfaces having insulation applied on the under sides, the supports shall be similar to those on vertical sttntaces and sufficiently dose together to prevent sagging of the insulation. On horizontal surfaces with insulation applied on the upper side, fastenings will be required only to prevent accidental displacement or damage from external causes. Mineral Wool Insulation (H igh Temperatures) 7 T a b l e 3 . Recommended minimum insulation thicknesses The insulation thicknesses listed in this table are recommended for indoor locations; for outdoor locations. Increase insulation thickness not less than H in. For underground application, thickness m ay be decreased in. when specified. (See par. 10.) BLANKET INSULATION * Temperature Thickness Temperature Thickness F Up to 300............................................ 300 to 600............................................... 500 to 700................................................ in. F 1 700 to 900 _ . . ___ t o 900 to 1.100 __ 2 1,100 to 1,300 ....................................... in. 1* >H BLOCK OR BOARD INSULATION INStTLAnNO CEMENT > Temperature Thickness Temperature Thickness Up to 300............... ................................ 200 to 400..................... : ......................... 400 to 500............................................... 500 to 600.............................. 600 to 700................................................ 700 to 900................................................ 900 to 1,100............................................. 1,100 to 1,300......................................... 1,300 to 1,500................................... 1,500 to 1,600....................................... in. F 1 t o 2nb to 400 ...................... l ............... 2 400 to 500 .................. w............. 2H 3 600 to 700............................................... t o 700 to 900............................................... 4 900 to 1.100 ........................... ..... m 1.100 to 1,300 ..................................... 5 1.30Q to 1,600 m 1,600 to 1,800 PIP* INSULATION in. 1 to i* to 4 iH 8* Blanket-type Molded-type ; Temperature Thickness Pipes Pipes Pipes 2 In. to 4 In. to 6 m. 4 in. 6 in. and up Tern pci ature Thickness Pipes below 2 in. Pipes 2 in. to 4 in. Pipes 4 in. and up F to. 150 to 250. ................ 1 250 to 350..................... 1 350 to 450..................... 1 450 to 5 50..*............... 1 550 to 650....................,, to 650 to 750. ................ to 750 to 900..................... 2 900 to 1,050................. 2 1,050 to 1,200............... to to. 1 1 1 to to 2 2 2 H to to. 1 1 to to 2 2 r 4 F U p to 275................... 8 .......... . S td ............ 275 to 350.................... ...d o __ _ 350 to 4 2 5 .................. ...d o .. ___ t o " ........... 425 to 500-.................. 500 to 600.................... p " ......... - 2 " .............. D bl.std... Std. iH ". 2". Dbl. std. Do. >(Refer to par. 10b.) These reoommended m inim um thicknesses also apply to felts, industrial bstts, loose wool, and granulated wool at corresponding tem peratures. * Usually applied over blankets and blocks or boards H In. thick, as a base coat for desired finish. For built-up applications of insulating cement on irregular surfaces, thicknesses m ay be used up to the practical lim it. lie .. Attachment to brick or refractory masonry surfaces may be by nails driven into mortar joints, by expansion bolts, or by rods or bolts embedded in the masonry. (See fig. 11.) lid . Adhesives, rope-and-spring girdles, or other suitable means may be employed for temporary support of the insulation during application. Such supports shall be replaced by permanent fastenings before the final finish is applied. ^ 12. Protection. 12a. Insulation and auxiliary materials shall be protected against mechanical damage and weather exposure during installation. There after periodic inspection shall be made and the insulation maintained to insure continued satisfactory performance. 835730-- 9---- 2 8 Commercial Standard CS117-49 F ig u r e 1. I n s u l a t i o n e n c lo se d b e tw e e n m e ta l sh e e ts. A t M etal sheets; B, mineral wool insulation; C, fastenings; D, horizontal support. F igurb 2. Insulation enclosed between masonry walls. A , M mtm tjnrdO t; B , mineral wool haoletkm ; C, metal tie. Mineral Wool Insulation (H igh Temperatures) 9 F ig u r e 3 . Blanket insulation supported by clip angles. A t Heated surface; B, clip angles; C, blanket insulation; D, tie wires from clip angles to m etal mesh facizuts: E t lacing wire between blankets. 10 Commercial Standard C S I17-49 F igure 5. Insulation attached by welding with stud gun after insulation is in place. A , Heated rarfaoe; B, mineral wool insolation; C, large bead studs. F ig u r e 6 . Insulation attached by bolts with heads welded to metal surface. A , Heated surface; B, bolt; C, mineral wool Insulation; D, washer; E , n u t. F igure 7. Insulation attached by bolts through drilled holes. A . Heated Mrfcee; B, bolt; C, mineral wool insulation; D, washer; JE. nu t. Mineral Wool Insulation (H igh Temperatures) 11 F ig u r e 8 . Insulation attached to light-gage metal surface by sheet metal screw and washer. A , Heated surface; B, mineral wool insulation; C, screw; 71, washer. \ \ F ig u r e 9. Blanket insulation held on by hairpin wires through tw in holes in metal surfaces. A , Heated surface; B, hairpin wire; C, blanket insulation; D, metal mesh. F igure 10. Blanket insulation held on by tie wires attached to wire girdles and exterior circumferential bands. A , Heated surface; B, girdles; C, tie wires; D, blanket Insulation; E, circumferential bands; F, laclna wires. 12 Commercial Standard CS117-49 APPLICATION (DETAIL) FELTS, INDUSTRIAL BATTS, LOOSE WOOL, AND GRANULATED WOOL 13. Preparation of surface. 13a. The surface to be insulated shall be inspected. All loose parti cles, rust, scale, or dirt shall be removed and any leaks or other damage repaired. 14. Installation of insulation. 14a. Felts, industrial batts, loose wool, and granulated wool shall be installed in enclosed spaces adequately supported to prevent loss of or damage to the insulation. (1) Felts and industrial batts may be installed by using tempo rary fastenings such as wires or adhesives, and then cover ing with permanent enclosures such as metal sheets, wire netting, or other specified material. (2) Loose and granulated wool shall be installed in spaces previously prepared to provide for the specified thickness. BLANKET INSULATION 15. Preparation of surface. 15a. The surface to be insulated shall be inspected. All loose parti cles, rust, scale, or dirt shall be removed and any leaks or other damage repaired. 15b. Suitable anchorage for the blankets shall be provided in the form of wire cables, nuts, clip angles, or No. 9-gage galvanized wires, welded or otherwise securely affixed to the surface on specified centers. (See figs. 3 to 10.) 16. Installation of blankets. 16a. On curved metal surfaces, blankets of specified thickness (see table 3) shall be secured to the supports with the expanded-lath side exposed, edges tightly butted together, then laced together or tied at frequent intervals along the edges with No. 16-gage galvanized wire, and finally banded or wired circumferentially. (See figs. 10 and 13.) 16b. On flat surfaces, blankets shall be applied with the expandedlath side exposed, by impaling them over No. 9-gage galvanized wires welded perpendicular to the surface. The extending ends of the wiresthen shall be bent upward at right angles and pushed into the blanket. The blankets shall be butted, then laced together or tied at frequent intervals along all edges with No. 16-gage galvanized wire. (See fig. 10.) (1) As an alternate method of application, blankets may be' applied on flat surfaces by using No. 9-gage galvamzedwire girdles and No. 16-gage galvanized hairpin wires (see fig. 11), or clip angles welded to the surfaces (see fig. 3). 16c. On masonry surfaces, blankets of specified thickness with the expanded metal-lath face exposed shall oe secured to No. 9-gage galvanized-wire girdles and No. 16-gage galvanized hairpin wires affixed to attachments embedded in the surface, as outlined in para graph 11c. The edges should be tightly butted and laced together or tied at frequent intervals with No. 16-gage galvanized wire. (See fig. 11.) M ineral W ool Insulation (High Temperatures') 13 F igure 11. A pplication o f blanket insulation by hairpin wires affixed to nails embedded in masonry joints. A , M asonry surfera; B , masonry nails; C, hairpin vires; D, blanket insolation; B , larinc v ire . 16d. Expansion joints for large metal vessels. (1) Expansion joints should be provided every 12 to 16 ft on heated equipment where temperatures in excess of 600 F. are encountered. They shall consist of spaces approxi mately 1% to 2 in. wide between successive rows of blankets. (See fig. 12.) After the application of blankets and of the first %-in. coat of insulating cement, but before the second coat, a strip of asphaltic mastic approximately 4 in. wide shall be applied around the vessel over the first coat of insulating cement and imme diately below the space left between blankets. When this strip of weatherproofing has dried, the space between the blankets shall be packed with loose mineral wool. - The second K-in. coat of insulating cement shall then be applied over the entire vessel area except over the narrow strips! of weatherproofing immediately below the expan sion joints. After the cement has thoroughly dried, a layer of No. 20-gage, 1-in. galvanized-wire mesh netting shall be tightly stretched over the insulating cement and permanently secured in place. A separating layer of 20-lb. rosin-sized paper is applied over the narrow strip of weatherproofing and ar 12-in.wide strip of &-in. galvanized hardware cloth is applied to cover both the expansion joint and rosin-sized paper. The top edge of the hardware cloth shall be securely laced and fastened to the 1-in. wire mesh previously applied, 14 Commercial Standard C S I17- I F igure 12. Expansion joints fo r large metal vessels (see par. 16d). A , Heated surface; B, blanket Insulation; C, first H In.-layer of insulating cement; D, asphalt m astic strip; E, second M-ln. layer of insulating cement; /*, loose wool fill; O, rosin-sized paper; H, l-!n. galvanized wire mesh; I, 1-in. galvanized hardware cloth; J t asphalt mastic; K , line of cleavage; L , 12-in.-wide No. 24-gage metal band; M , H-in.-wide steel straps. leaving the bottom edge of the hardware cloth free to move up or down with expansion and contraction. The entire vessel shall then be covered with weather proofing mastic, striking off a line of cleavage with the point ofa trowel at the lower edge of each hardware cloth expansion shield. As an added protection against weather damage, a 12-in. band of No. 24-gage metal may be added over the entire expansion-joint area. 17. Application offinish. 17a. After the blankets are in position and carefully secured, a X-in. layer of mineral wool insulating cement shall be applied. This coat shall be forced well into the expanded metal lath to form a strong key. Sufficient cement shall be applied to level off the surface. A second X-in. troweled coat of insulating or finishing cement shall be applied after the first coat has dried. Portland cement to a maximum of 25 percent dry weight may be added to this coat if a harder finish is desired. 17b. Insulation located indoors and not exposed to moisture or abrasion mav be further finished as described below. (1) When specified, a layer of asphalt weatherproof mastic finish may be applied instead of canvas. After the second coat of cement has thoroughly dried, 1-in. galvanized-wire netting shall be stretched tightly over the Mineral Wool Insulation (H igh Temperatures) J5 F ig u r e 13. Application o f mineral toool blanket insulation on curved surfaces. A , Bare surface; B, No. 9-gape galvanlzed-wirc girdles spaced 4 ft. on centers; C, blanket insulation 2 ft. by 8 ft. wired to girdles: D. blanket edges \accd with No. 16-gaee galvanised wires; E. Vi- or ^4-in. galvanized bands spaced approximately 8 in. on centers; F, two or more bands a t top; G, insulating cement; l l t I-in. galvanized-wire netting secured in place with No. 16-gage galvanized wires; /, finishing cement or asphaltic finish. surface and wired in place with No. 16-gage galvanized wire. Asphalt weatherproof mastic finish shall then be applied, sufficiently thick (approximately % in. thick, wet) to provide a minimum dry thickness of % in., troweling it well into the wire netting. (2) When specified, a 6- or 8-oz canvas jacket shall be sewed or pasted smoothly in place. If sewed, stitches shall be spaced not more than % in. apart, with seams located where least visible. 17c. Insulation located outdoors or exposed to moisture or abrasion shall be protected by one of the methods described below. (1) After the cement has thoroughly dried, 1-in. galvanizedwire netting shall be stretched tightly over the sin-face and wired in place with No. 16-gage galvanized wire. Asphalt weatherproof mastic finish shall then be applied, sufficiently thick (approximately % in. thick, wet) to provide a minimum dry thickness of % in., troweling it well into the wire netting. (2) When specified on smooth regular surfaces, the cement and asphaltic coatings may be omitted, and the surface weatherproofed instead with a sheet-metal jacket. The sheet-metal jacket shall be no lighter than No. 28 gage, single or double galvanized, and shall be suitably anchored to the surface. Seams shall be lapped 2 in. against the weather and secured with metal screws, or provided with a locked or flange-crimped joint, or 9therwise sealed, to prevent the-entry of moisture. After providing for expansion and contraction of the metal jacket, it shall be secured in place with K-in. or %-in.wide galvanized metal bands, machine-stretched and crimped, on specified centers. 83a730-- 4------3 16 Commercial Standard C S117-49 BLOCK OR BOARD INSULATION 18. Preparation of surface. lSa. The surface to be insulated shall be inspected. All loose particles, rust, scale, or dirt shall be removed and any leaks or other damage repaired. Brick surfaces shall be made true and even as required for block or board insulation. 18b. Suitable anchorage for the insulation shall be provided as outlined in paragraph 11. 19. Installation of blocks or boards. 19a. On curved metal surfaces, blocks or boards of specified thickness (see table 3) shall be butted closely together with joints staggered, employing a suitable method of anchorage. (Sec par. 11.) Following application, any voids or openings between blocks or boards shall be filled with insulating cement. A layer of 1-in. galvanized-wire netting shall be stretched tightly over the blocks and secured in place with No. 16-gagc galvanized soft iron wire. (See fig. 14.) F ig u r e 14. Application - of mineral wool block insulation on curved surfaces. A , Bare surface; P, mineral wool blocks applied with Joints staggered; C, or ff4n. galvanized bands , spaced approximately 8 in. on centers; D, 1-lh. galvanlwii-wire netting secured in place with No. 16-gage galvanized wires; E, insulating oement; F, l-in. galvanized-wire netting secured in place with No. 16-gage galvanized wires; O, finishing oement or asphaltic finish. 19b. On flat metal surfaces, blocks or boards of specified thickness shall be properly secured, using the means of anchorage provided. (See par. 11.) Blocks shall be butted closely together with joints' staggered and secured as required with steel bands or wire on specified centers, as shown in figure 15. Following application, any voids or openings between blocks or boards shall be filled with insulating cement. (1) When a subsequent application of insulating cement is specified, l-in. galvanized-wire netting shall he stretched tightly over the blocks and wired securely in place. (2) On rectangular equipment such as ducts or breechings, comer bead shall be installed when specified. (See fig. 15.) \ Mineral Wool Insulation (High Temperatures) 17 F ig u r e 15. A pplication o f mineral wool blocks on flat or rectangular surfaces. a, Application where insolation thickness is greater than stiffener height. A , Bare surface; B , stiffener ribs; C, mineral wool blocks; D, No. 16-gage galvanized reinforcing wires or Hrtn. galvanized bands applied over blocks; E, corner bead secured over blocks at comers with No. 16-gage galvanized wires; F, insulating cement; G, 1-in. galvanized wire netting stretched tightly over insulating cement and wired in place; H , finishing oement or asphaltic finish. b, Enlarged details showing application of corner bead. A t Metal duct; B , mineral wool blocks: C, No. 16-gage galvanized wire over blocks; D, com er bead; E, No. 16-gage galvanized wires draw n through perfo rations in comer bead. c, Application where insulation thickness is equal to cm*less than stiffener height. A , Stiffener; B , m ineral wool blocks; C, insulating cement and specified finish beveled back a t rib. 19c. Expansion joints should be provided every 12 to 16 ft. on heated equipment where temperatures in excess of 600 F are encountered. The application of block or board with expansion joints shall follow the method set forth in paragraph 16d and illustrated in figure 12. 19d. On masonry surfaces, blocks or boards of specified thickness (table 3) shall be butted closely together with joints staggered, using an appropriate means of support (par. 11). Following application, any voids or openings between blocks or boards shall he filled with insulating cement. (1) For installation of blocks or boards between brick or other structural materials, see figure 16. 20. Application offinish. y 20a. After the blocks or boards are secured in place and reinforced with 1-in. galvanized-wire netting, a %-in. coat of insulating cement shall be applied to level off the surface. A second #-in. troweled coat of insulating or finishing cement shall be applied after the first coat 18 Commercial Standard CSJ17--4.9 F ig u r e 16. Application of mineral wool blocks between structural supports. A , Bare surface; B, first layer of mineral wool blocks against steel casing; C, second layer of blocks applied with all joints staggered; JD, brick. has dried. Portland cement to a maximum of 25 percent dry weight may be added to this coat if a harder finish is desired. -20b. Insulation located indoors and not exposed to moisture or abrasion may be further finished as described below. (1) When specified, a layer of asphalt weatherproof mastic finish may be applied. After the second coat of cement has thoroughly dried, 1-in. galvanized-wire netting shall be stretched t-ightjy over the surface and wired in place with No. 16-gage galvanized soft iron wire. Asphaltic finish shall then be applied, sufficiently thick (approxi mately )i in. thick, wet) to provide a minimum dry thick ness of %in., troweling it well into the wire netting. (2) When specified, a 6- or 8-oz canvas jacket shall be sewed or pasted smoothly in place. If sewed, stitches shall be spaced not more than % in. apart, with seams located where least visible. 20c. Insulation located outdoors or exposed to moisture or abrasion shall be protected by one of the methods described below. (1) After the cement has thoroughly dried, 1-in. galvanizedwire netting shall be stretched tightly over the surface and wired in place with No. 16-gage galvanized soft iron wire. Asphalt weatherproof mastic finish shall then be applied, sufficiently thick (approximately }i in, thick, wet) to provide a minimum dry thickness of % in., troweling it well into the wire netting. (2) When specified, the insulating cement, wire netting, and asphalt mastic coating may be omitted, and the surface weatherproofed instead with a sheet-metal jacket. The sheet-metal jacket shall be no lighter than No. 28-gage, single or double galvanized, and shall be suitably an chored to the surface. Seams shall be lapped 2 in. x against the weather and secured with metal screws, or Mineral Wool Insulation (High Tem peratures) 19 provided with a locked or flange-crimped joint to prevent the entry of moisture. After providing for expansion and contraction of the metal jacket, it shall be secured in place with ^-in. or %-in. galvanized metal bands, machine-stretched and crimped, on specified centers. INSULATING CEM EN T (BUILT-UP APPLICATIONS) 21. Preparation of surface. 21a. The surface to be insulated shall be carefully inspected and all loose particles, rust, scale, or dirt removed and leaks or other damages repaired. Paint or grease shall be removed with a caustic solution which then shall be washed off with water. When possible, the surface to be insulated shall be kept warm to facilitate drying. 22. Installation of insulating cement. 22a. Before being applied, insulating cement shall be mixed with clean, fresh water to troweling consistency. 22b. On curved or flat steel surfaces, insulating cement of specified thickness (see table 3) shall be built up by applying separate coats, each no greater than %in. thick. The first coat shall be spotted on by hand, then completely roughed in. After the preceding coats have dried, additional successive coats, each %in. thick or less, shall be applied until the total specified thickness is reached. (See fig. 17.) F ig u r e 17. Application of mineral wool insulating cement on cursed steel surfaces. A , Cleaned bare surface; B, first coat of insulating cement spotted on roughly b y band; C, second seat of Insulating cement; D, 1-in. galvanized-wire netting; , finishing oement or asphaitto ABM. (1) When the total insulation thickness is greater than 2 in. or when the cement is to be applied to the under side of equipment, or when the equipment is subject to vibra tion, a layer of galvanizea-wire netting should be applied between every second coat. When used, the wire netting should be stretched tightly over the diy cement ana securely wired in place with N o. 16-gage galvanized wire. - f 22c. On heated brick surfaces, insulating cement shall be applied to specified thickness, but no greater than will result in a safe tempera ture gradient for all materials used in the composite construction. Where reinforcing is required, masonry nails of suitable length shall 20 Commerciai Standard CS117-)fl be driven into the mortar joints on approximately 12-in. centers so that the heads project from the surface of the bricks. Successive layers of insulating: cement shall he applied until the desired thickness is readied. (See fig. 18.) Before the last layer of insulating cement is applied, 1-in. mesh galvanized-wirc netting shall be stretched tightly over the dried cement and secured to the nails. The last coat shall be troweled carefully into the wire mesh and applied in sufficient thickness to cover the nail heads. A , Heated brick surface; B, nails embedded in masonry Joints spaced approximately on 12-In centers with heads projecting about M in. from the surface; C, first coat of insulating cement applied nearly flush with nail heads; D, 1-in. galvanized wire mesh secured to nail heads; E, second coat of insulating cement; Ft cement or asphaltic finish. S (1) If the insulated surface is to be weatherproofed, No. 16age galvanized hairpin wires shall be affixed to the nail eads and permitted to extend through the overlying" cement to provide anchorage for the weatherproof finish. 23. Application offinish. 23a. Insulating cement located indoors and not exposed to moisture or abrasion shall be finished, when specified, with a %-in. troweled coat of finishing cement. Portland cement to a maximum of 25 per cent dry weight may be added to this coat if a harder finish is desired. (i) When specified, ft 6- or 8-oz. canvas jacket may be sewed or pasted smoothly in place. If sewed, stitches shall be spaced not more than % in. apart, with seams located where least visible. (2) When specified, a layer of asphalt weatherproof finish shall be applied instead of canvas. After the cement has thoroughly dried, 1-in. mesh galvanized-wire netting shall be stretched tightly over the surface and wired in place with No. 16-gage galvanized wire. Asphaltic l M ineral W ool Insulation {High Tem peratures) 21 finish shall then be applied, sufficiently thick (approxi mately % in. thick, wet) to provide a minimum dry thickness of %in., troweling it well into the wire netting. 23b. Insulating cement located outdoors, or exposed to moisture or abrasion, shall be finished with an asphalt weatherproof mastic finish. (1) After the cement has thoroughly dried, 1-in. mesh gaivanized-wire netting shall be stretched tightly over the surface and wired in place with No. 16-gage soft iron galvanized wire. Asphalt weatherproof mastic finish shall then be applied, sufficiently thick (approximately %in. thick, wet) to provide a minimum dry thickness of Ys in., troweling it well into the wire netting. (See figs. 17 and 18.) BLANKET-TYPE PIPE INSULATION 24. Preparation of surface. ' \ 24a. Piping, valves, and fittings to be insulated shall be tested for leaks and other defects, pipe hangers relocated as required, and all . other preliminary operations completed before the insulation is applied. 25. Installation on pipes. 25a. Blanket-type pipe insulation of specified thickness (see table 3) shall be applied on pipes and long-radius bends of 2-in. standard pipe size, or greater. (1) Before being applied, the insulation shall first be formed roughly to fit the pipe. It shall then be applied to the pipe, and the abutting edges pulled together tightly at the longitudinal joint and secured by tying or lacing with No. 16-gage galvanized soft iron wire. The insula tion should be turned to bring the seam to the lower side. Pipe insulation shall be spaced a sufficient distance from flanges to permit removal of the bolts when flanges are opened. Adjacent lengths shall be butted closely to gether and laced with wire. Exposed ends of the wires shall be bent over and pressed into the insulation to leave no sharp projections. (See fig. 19.) F ig u r e 1ft. A pplication of blanket-type mineral w ool p ip e i n s u la tio n on p ip e* . A , Bare pipe; B , blanket-type insulation wrapped circumferentially around bare pipe; C.Jofntoenured w ith No. 16~gage galvanized wires; D, insulating cement; K, asphaltic or other epecroed finish. 22 Commercial Standard C S lll-J (2) When specified, blanket-type pipo insulation shall be furnished with an integral gnlvanizcd-metal jacket. It shall be applied snugly around the pipe and bolted along the flanged longitudinal joint. No further finish is required. 20. Installation on valves, flanges, and flttings. 20a. Valves, flanges, and fittings for 2-in. standard pipe size or larger shall be insulated with blanket-type pipe insulation of thickness equal to tire insulation on adjacent piping. The insulation shall be applied after the finish has been installed over the insulation on the adjacent piping. It shall be formed to fit by cutting it along the circumferential edges and then shall be secured in place by wiring the longitudinal joint. All cut edges shall be laced together with No. 16-gage soft iron galvanized wire and the ends of the wire loops bent over and pressed into the insulation to leave no sharp projections. (See fig. 20.) F ig u r e 20. Application of blanket-type mineral wool pipe insulation on large valves and fittings. A , bare Attlni; B, blanket-type pipe insulation; C, joints secured with No. 16-gage galvaniied wires; V , insulating cement or other specified finish. 26b. As alternate applications on valves, flanges, and fittings, insulating cement or block insulation may be used. (1) Insulating cement shall be built up in %-in. coats to a thick ness equal to the insulation on adjacent piping. (See par. 22a and fig. 21.) (2) Blocks )\ in. thick less than the insulation on adjacent' piping shall be carefully fitted and wired securely in place. A K-in. coat of insulating cement shall then be applied, troweling it well into the cracks between adja cent blocks. 27. Application ojfinish. 27a. Blanket-type pipe insulation located indoors and not exposed to moisture or abrasion shall be finished as described below. (See fig. 19.) (1) When specified, pipes, valves, flanges, and fittings shall be finished with mineral wool insulating cement applied in Mineral Wool Insulation (High Temperatures) 23 F igure 21. Application of mineral wool insulating cement to valves, flanges, and fillings. A , sectional pip Insolation; B , insulating cement and other specified finish. two separate %-in. coats. A sufficiently thick firat coat shall be applied and allowed to dry in. order to form an even base on which to apply the finishing coat. (2) Pipes, valves, flanges, and fittings may be finished with a roofing-felt jacket, when specified. Roofing felt shall be smooth-surfaced, asbestos, asphalt-saturated and coated, weighing not less than 45 lb. per roll of 108 sq. ft. Seams shall be lapped at least 2 in. and, when specified, shall be sealed with lap cement. The roofingfelt jacket shall then be secured in place with copperclad steel wires, copper wires, or galvanized bands spaced on approximately 6-in. centers. (3) Pipes, valves, flanges, and fittings may be finished with asphaltic finish when specified. A }<-in. coat of insulat ing cement shall be applied and when it has. dried, 1- - in. galvanized-wire netting shall be stretched tightly over the surface and wired in place with No. 16-gage soft iron galvanized wire. Asphaltic finish shall then be applied, sufficiently thick (approximately Yt in. thick, wet) to provide a minimum dry thickness of X in- troweling it well into the wire netting. (4) Pipes, valves, flanges, and fittings shall be finished, when specified, with a canvas jacket{ sewed or pasted over a layer of flameproof paper, Xi-m.-thick asnestos piper, or a Ji-in. coat of insulating or finishing cement. Ifsewed, stitches shall be spaced not more than X in. apart, with seams located where least visible. 24 Commercial Standard C S I 17-1$ 27b. Blanket-type pipe insulation located outdoors or exposed to moisture or abrasion shall be weatherproofed as described below. (1) Pipes, "valves, flanges, and fittings shall be finished with a sheet-metal jacket, roofing felt, asphaltic finish, or other suitable weatherproof cover, as specified. (2) Sheet-metal jackets shall be no lighter than No. 28-gage, single- or double-galvanized. Seams shall be lapped 2 in. against the weather and secured in place with Kor %-in. galvanized metal bands, machine-stretched and crimped, on approximately 6-in. centers. (3) When a roofing-felt finish is specified it shall be smooth surfaced, asbestos, asphalt-saturated and coated, weigh ing not less than 45 lb. per roll of 108 sq. ft. Seams shall be lapped at least 2 in. against the weather; and when specified, shall be sealed with lap cement. The roofingfelt jacket shall then be secured in place with copperclad steel wires, copper wires, or galvanized bands spaced on approximately 6-in. centers. (4) Pipes, valves, flanges, and fittings may be finished with asphaltic finish when specified. A )i-in. coat of insulat ing or finishing cement shall be applied, and when the cement has thoroughly dried, 1-in. galvanized-wire net ting shall be stretched tightly over the surface and wired in place with No. 16-gage galvanized wire.' As phaltic finish shall then be applied, sufficiently thick (approximately ){ in. thick, wet) to provide a minimum dry thickness of % in., troweling it well into the wire netting. M OLDED-TYPE PIPE INSULATION 28. Preparation of surface. 28a. Piping, valves, and fittings to be insulated shall be tested for leaks and other defects, pipe hangers relocated as required, and all other preliminary operations completed before the insulation is applied. 29. Installation on pipes. 29a. Molded-type mineral wool pipe insulation of specified thick-, ness (see tables 2 and 3) shall be applied in sectional or segmental form, of single- or double-layer construction, as specified. At flanges, pipe insulation shall be spaced a sufficient distance from the flanges to permit easy removal of bolts when flanges are opened. (1) Adjacent pieces of sectional pipe insulation shall be buttedclosely together and banded in place. (See fig. 22.) F igure 22. Application of mineral wool sectional pipe insulation, tingle-layerA, B a n pip; B, actional pip Insolation; C, cant'd* Jacket/*- other specified finish; Z>, metal bands. M ineral Wool Insulation {High Temperatures) 25 (2) Segmental pipe insulation should be secured in place with separate loops of No. 16-gage galvanized wire, spaced on approximately 8-in. centers. Ends of wires shall be bent over and pressed into the insulation, leaving no sharp projections. (Sec fig. 23.) F igure 23. Application of mineral wool segmental pipe insulation. A t Bare pipe; B, segmental pipe insulation; C, No. 16-gage galvanized wires; D, insulating oement, when required; E, canvas jacket or other specified finish; F, metal bands. (3) Double-layer pipe insulation, either in sectional or seg mental form, shall be applied with circumferential and longitudinal joints staggered, omitting the canvas jacket between layers. The first layer shall be wired in place with separate loops of wire spaced on approxi mately 8-in. centers. The second layer shall bfe applied snugly over the first layer and secured in place. (See fig. 24). F igure 24. A pplication of mineral wool sectional pipe insulation, double-layer. A , Bare pipe; B, first layer secured with No. 16-gage galvanised wires; C, second layer applied w ith all joints staggered; D, canvas Jacket or other specified finish; E, metal bands. 30. Installation on valves, Hanges, andfittings. 30a. Valves, flanges, and fittings shall be covered with insulating cement, block insulation, or molded-typo pipe insulation, as specified. (1) Insulating cement shall be built up in X-in. coats to a thickness equal to the insulation on adjacent piping. (See par. 22a and fig. 21.) (2) Blocks % in. thick less than the insulation on adjacent piping shall bo carefully fitted and wired securely in place. A X-in. coat of insulating cement shall then be applied, troweling it well into the cracks between adja cent blocks. (See fig. 25.) 26 Commercial S ta ndard CS117--49 F ig u r e 25. Application of mineral wool block insulation to large fittings. A , Pipe insulation; B, block insulation; C, No. 16-gage galvanized wires; Dt insulating cement or other specified finish. (3) Molded-type pipe insulation may be used to insulate flanged couplings. Rings of sectional pipe covering IK to 2 in. Wide should be wired in place on each side of the flange, selecting an insulation thickness that will provide an outside diameter equal to or greater than the flange diameter. A piece of sectional pipe insulation long enough to cover the flange then should be banded in place. (See fig. 26.) F io n a s 26. Application of molded-lype mineral wool pipe insulation to flangtt and fittings. A , Sectional pipe insulation; B, No. 1Singe galvanised vires or galvanised bands; C, sectional or sagmental pipe Insulation; D, Insulating cement or other specified finish. Mineral Wool Insulation (High Temperatures) 27 31. Application offinish located indoors. 31a. Molded-type pipe insulation located indoors and not exposed to moisture or abrasion shall be finished with a canvas jacket. (1) The factory-weight canvas jacket furnished shall be drawn tight and smoothly pasted down at all side and end laps. Factory bands shall be applied, one binding the adjacent ends and one at the center of each section. (2) When extra-weight canvas jacket is specified, the factory- weight canvas and bands (if furnished) shall be omitted. The pipe insulation shall be covered with a layer of flameproof paper, %-m. asbestos paper, or a ji-m. coat of insvdating or finishing cement. The specified 6- or 8-oz canvas jacket shall then be pasted or sewed neatly in place as specified. If sewed, stitches shall be spaced not more than % in. apart, with seams located where least visible. 31b. Insulation on flanges, valves, and fittings located indoors or not exposed to moisture or abrasion shall be covered with a K-in. coat of insulating or finishing cement. Portland cement to a maximum of 25 percent dry weight may be added to this coat if a harder finish is desired. 1 (1) When specified, a 6 -or 8-oz canvas jacket shall be sewed or pasted neatly over the dry cement. Sewed canvas jackets on valves, flanges, and fittings shall be made continuous with the canvas on adjacent pipe, when specified, by overlapping or blind stitching. If sewed, stitches shall be spaced not more than ){ in. apart and seams shall be placed where least visible. 32. Application offinish located outdoors. 32a. Molded-type pipe insulation and fittings located outdoors or . exposed to moisture or abrasion shall be provided with a weatherproof protective finish in the same general manner as specified for blankettype pipe insulation. (See par. 27b.) GUIDES FOR PAIN TIN G 33. When specified, insulation finishes shall be painted for identifica tion purooses in accordance with "Scheme for the Identification of Piping Systems," issued by the American Standards Association (A13-1928). 34. The application of paint should be deferred until the insulated equipment has been operated at the design temperature for a sufficient length of time thoroughly to dry out all components of the installation. 35. When weatherproof finishes of the emulsified-asphalt or roofingfelt types are to be painted, they should be primed with at least one coat of aluminum paint, before applying lead-in-oil paint. Asphaltbase paint may be used directly over the asphaltic finish when a black color is specified. 36. Canvas should be given a t least one coat of glue size folfcwed by two coats of lead-in-oil paint. 37. Galvanized metal is not ordinarily painted immediately follow ing its application. If painting is required, it should be done in accordance with the manufacturer's directions. 28 Cominercial Standard GS I 17-1)9 38. Insulating cements and finishing cements ordinarily dry to a light color, and may be painted with a nonpenetrating paint such as aluminum. M A IN T E N A N C E 39. In order to maintain high thermal efficiency in conjunction with long insulation life, the following recommendations are made: (a) Inspect all insulation jobs periodically, particularly those located outdoors or exposed to moisture, vibration, or abrasion. (b) When equipment is moved, or if for other reasons the finish of the insulation is damaged or becomes loose, repair or replace it as required to prevent deterioration. (c) For advice on problems in connection with any specific insulation application, consult the manufacturer or the contractor who applied it. GUARANTEE LABELS AND CERTIFICATES 40. Manufacturer's labels.--In order that the purchaser may be assured of obtaining mineral wool insulation conforming to the require ments of this standard, it is recommended that products complying therewith bear a certificate, label, or imprint containing the following wording: This mineral wool product is guaranteed to conform to th e require m ents of Commercial S tandard CS117-49, as developed by th e trade under the procedure of the National Bureau of Standards, and issued by the United States D epartm ent of Commerce. Name of manufacturer 41. The following is an illustration of the label adopted by the members of the Industrial Mineral Wool Institute to assure distribu tors and users of receiving mineral wool insulation that conforms to the requirements of this commercial standard. THE MANUFACTURER CERTIFIES THIS MINERAL WOOL INSULATION CO NFO RM S TO COMMERCIAL STANDARD CS 117-49 AS ISSUED BY NATIONAL BUREAU OF STANDARDS U. S. DEPARTMENT OF COMMERCE IN C O O P E R A T IO N W ITH T H E INDUSTRIAL MINERAL WOOL INSTITUTE N E W YO R K , N.Y. MFRS. NO. COPYRIGHT IM S BY THE INDUSTRIAL MINERAL' WOOL INSTITUTE F ig u r e 27. Facsimile of Industrial Mineral Wool Institute label. M ineral Wool Insulation {High Temperatures) 29 42. Contractor's certificate.--It is recommended that the installer or contractor furnish a certificate guaranteeing that the insulation is installed in accordance with this standard. The following wording is recommended for this certificate: T h i s ------------------------------------- has been insulated w ith Class (type of equipment) ------------------- Mineral W o o l________________ , installed in com- (type) pliance w ith the recommended installation requirem ents of Com mercial Standard CS117-49, as developed by th e trad e under the procedure of the National Bureau of Standards, and issued by the U nited S tates D epartm ent of Commerce. D a t e ________________ (Company name) (Address) EFFECTIVE DATE 43. Having been passed through the regular procedure of the Commodity Standards Division, and approved by the acceptors hereinafter listed, this commercial standard was issued by the United States Department of Commerce, effective from June 1, 1949. E dwin W . E ly, Chief, Com m odity Standards Division. HISTORY OF PROJECT On September 21, 1943, the Industrial Mineral Wool Institute requested the cooperation of the National Bureau of Standards in the establishment of a commercial standard for mineral wool insulation for heated industrial equipment. A draft of the proposed commercial standard was submitted on November 1, 1943, to technical, distribu tor and consumer organizations/ Government agencies, and to manu facturers for their review and comment. On December 10, 1943, a meeting was held in Cleveland, Ohio, to review and consider all comments received. The standard was then adjusted in accordance with the composite recommendation of those concerned and circulated on January 7, 1944, to the trade for written acceptance. Following acceptance by a satisfactory majority, and in the absence of active opposition, an announcement was issued on April 25, 1944, that the standard had been accepted as a recorded voluntary standard of the trade, effective for new production from M ay 25, 1944. I t was issued as Commercial Standard CSl 17-44, Mineral Wool: Blankets, Blocks, Insulating Cement, and Pipe Insulation for H eated Industrial Eauinment. 30 Com m ercial S ta n d a rd CS117-Jt9 FIRST REVISION On September 22, 1948, the Industrial Mineral Wool Institute sub mitted a proposed revision in which the major changes were the addi tion of requirements for loose, granulated, and felted forms of mineral wool, with nine new and two revised illustrations showing methods of fastening and application of the mineral wool to various types of sur faces. These changes having been approved by the standing com mittee, the recommended revision was circulated on March 1, 1949, to those directly concerned for consideration and acceptance. Approval of the revision was announced on May 2, 1949, the revised standard, designated CS117-49, Mineral Wool Insulation for Heated Industrial Equipment, to be effective for new production from June 1, 1949. STANDING COMMITTEE The following individuals comprise the membership of the standing committee, which is to review, prior to circulation for acceptance, revisions proposed to keep the standard abreast of progress. Com ment concerning the standard and suggestions for revision may be addressed to any member of the committee or to the Commodity Standards Division, National Bureau of Standards, which acts as secretary for the committee. H. E. L e w is (chairman), The Eagle-Picher Sales Co., American Building, Cin cinnati 1, Ohio. C. A. S mtjcker, Owens-Coming Fiberglas C orp., N ew ark, Ohio. E. A. F airlamb, N ational Gypsum Co., Buffalo, N. Y. K. M. R it c h ie , Baldvin-H ill Co., 500 Breunig Avenue, T renton 2, N. J. H arold M. Abf.r , The Aber Co., Inc., P. O. Box 212, Shreveport, La. J ohn R eil.lt, The Reilly-Benton Co., Inc., 613 H ibernia Building, New Orleans 12, La. L. A. F o ster, L. A. Foster Co., 1519 N o rth Broadw ay, St. Louis 6, Mo. F rederick J. H easlip, Fairbanks, Morse & Co., 600 S. Michigan Avenue, Chi cago, 111. (representing N ational Association of Purchasing Agents). H en rt E. Aldrich, American Boiler & Affiliated Industries, 15 P ark Row, New York 7, N. Y. R. J. P otburt, Bureau of Yards and Docks, D epartm ent of the Navy, Washing ton 25, D. C. CS1I7-49 ACCEPTANCE OF COMMERCIAL STANDARD I f acceptance has not previously been filed, this sheet properly filled in, signed, an d returned will provide for the recording of your organization as an acceptor of this commercial standard. Commodity Standards Division, National Bureau of Standards, Washington 25, D. C. D ate---------------------------------- Gentlemen: We believe that the Commercial Standard CSl 17-49 constitutes a useful standard of practice, and we individually plan to utilize it as far as practicable in the production1 distribution 1 purchase 1 testing1 of mineral wool insulation for heated industrial equipment. We reserve the right to depart from it as we deem advisable. We understand, of course, that only those articles which actually comply with the standard in all respects can be identified or labeled as conforming thereto. Signature of authorized officer (In ink) (C a t on thin lin t) (K in d ly typ ew rit or print th e following Unas) Name and title of above officer. Organization. Street address. (F ill in exactly as It shook! be listed) City, zone, and State ' U nderw ore w hich one. P lese e eee th a t sep arate accep tance s are filed far a ll su b sid ia ry com pan ie s a n d affiliates which should be listed separately as acceptors. In th e case of related Interests, trade associations, trade papers, e tc . desiring to record their general support, th e words "General Support" should be added after th e signature. SI TO THE ACCEPTOR The following statements answer the usual questions arising in connection with the acceptance and its significance: 1. Enforcement.--Commercial standards are commodity specifica tions voluntarily established by mutual consent of these concerned. They present a common basis of understanding between the producer, distributor, and consumer and should not be confused with any plan of governmental regulation or control. The United States Depart ment of Commerce has no regulatory power in the enforcement of their provisions, but since they represent the will of the interested groups as a whole, their provisions through usage soon become estab lished as trade customs, and are made effective through incorporation into sales contracts by means of labels, invoices, and the like. 2. The acceptor's responsibility.--The purpose of commercial stand ards is to establish for specific commodities, nationally recognized grades or consumer criteria and the benefits therefrom will be measur able in direct proportion to their general recognition and actual use. Instances will occur when it may be necessary to deviate from the standard and the signing of an acceptance does not preclude such departures; however, such signature indicates an intention to follow the commercial standard where practicable, in the production, dis tribution, or consumption of the article in question. 3. The Department's responsibility.--The major function performed by the Department of Commerce in the voluntary establishment of commercial standards on a Nation-wide basis is fourfold: first, to act as an unbiased coordinator to bring all interested parties together for the mutually satisfactory adjustment of trade standards; second, to supply such assistance and advice as past experience with similar programs may suggest; third, to canvass and record the extent of acceptance and adherence to the standard on the part of producers, distributors, and users; and fourth, after acceptance to publish and promulgate the standard for the information and guidance of buyers and sellers of the commodity. 4. Announcement and promulgation.--When the standard has been endorsed by a satisfactory majority of production or consumption in the absence of active valid opposition, the success of the project is announced. If, however, in the opinion of the standing committee or the Department of Commerce, the support of any standard is inadequate, the right is reserved to withhold promulgation and publication. 32 C S llY -49 ACCEPTORS The organizations and individuals listed below have individually accepted this standard for use as far as practicable in the production, distribution, or purchase of mineral wool insulation for heated industrial equipment. In accepting the standard they reserved the right to depart therefrom as they individually deem advisable. I t is expected th a t articles which actually comply w ith th e require m ents of this standard in all respects will be regularly identified or labeled as conforming thereto, and th a t purchasers will require such specific evidence of conformity. ASSOCIATIONS (General Support) American Society of Sanitary Engineering, McKees port, Pa. Industrial Mineral Wool Institute, New York, N. Y. N ational Cooperative Refinery Association, The, McPherson, Kans. FIRM S AND OTHER INTERESTS Accurate Insulation Co., Los Angeles, Calif. Adams, Franklin O., Tampa, Fla. Allen, George W ., LaPorte, Ind. American Crystal Sugar Co., Denver, Colo. American E n k s Corp.. Enka. N. C. American Potash A Chemical Corp., Trona, Calif. American Rock Wool Corp., Chicago, 111. American Steel Foundries, Chicago, III. American Thread Co., New York, N. Y. Anaconda Copper Mining Co., Butte, Mont. Andrews, Jones, Biscoe A Goodcll, Boston, Mass. Ansco, Division of General Aniline A Film Corp., Binghamton, N. Y. Ashland Oil A Refining Co., Ashland, Ky. Atlantic City Electric Co., Atlantic City, N. J. Austin, City of, Austin, Tex. Baldwin-Hill Co., Trenton, N. J. B^you State OU Corp., Hosston, La. Beech-nut Packing Co., Canajoharie, N. Y. Belle Alkali Co., Belle, W. Va. Belli, Edo Chicago, 111. Belli Co., Inc., T re D to n , N . J. Bellman, Gillett A Richards, Toledo, Ohio. Berger, F. E.--R. L. Kelley A Associates, Cham paign, 111. Bethlehem Steel Co., Bethlehem, Pa. Beuttler, W. M., Sioux City, Iowa. Bickford, Robert Turner, Elmira, N. Y. Bishop, Horatio W., L a Mesa, Calif. (General support.) Boehm, George A., New York, N. Y. Bovard, W illiam R., Kansas City, Mo. (Oeneral support.) Brooks-Borg, Dee Moines, Iowa. Brown dr Bigelow, St. Paul, Minn. Brown Co., Berlin, N . H. Brust A Brust, Milwaukee, Wis. Camlet, J. Thomas, Passaic, N. J. Cannon A Mullen, Salt Lake City, Utah Carey, Philip, Manufacturing Co., The, Cincinnati, Ohio. Carney Co., Intu, The, Mankato, Minn. Carver. George P ., Engineering Co., Boston, Mass. Central of Georgia Railway Co., Savannah, Ga. Cities Service Oil Co., Now York, N. Y. Coates, Henry T ., dr Associates, New York, N . Y. ColfeyvlUe, City of, Municipal Light dr Power Department. Coffeyville, Kans. Colorado Insulating Co., Denver, Colo. ' Mineral Wool Co.. Chicago, III. Locks Paper Co., Combined Locks, Wis. ;<mihust ion Engineering-Superheater, Inc., New York. N. Y. Connecticut Light A Power Co., The, W aterbary, Conn. Connecticut Power Co., The, New London, Conn. Conrad A Cummings, Binghamton, N. Y. Cooiidge, Sbeplcy, Bultinch A Abbott, Boston, M C Tn Products Refining Co., Chicago, HI. Corson. G. A W. H., Inc., Plym outh Meeting, Pa. C S t o k e r Engineering Co., Hazleton, Pa. Cram A Ferguson, Boston, Mass. Crane Co.. Chicago, 111. Crang Industries L tdu Toronto, Ontario, Canada. Crowell A Lancaster, Bangor, Maine. Dalla, City of, Water Works A Sewage Disposal, Dallas, Tex. Dallas Power A Light Co., Dallas, Tex. Daugherty Refinery, Division of L. Sonneborn Sons, Inc., Petrolia, Pa. Day A Zimmermann, Inc., Philadelphia, Pa. Dayton Power A Light Co., The, Dayton, Ohio. Deere A Co., Moline, III. DeJarnette, Chevies W., Des Moines, Iowa. (Gen eral support.) Detrick, M. H., Co., Aurora, 111. Detroit Edison Co., The, Detroit, Mich. Detroit Sulphite Pulp A Paper Co., D etroit, Mich. Dietel, G. J., Buffalo, N. Y. Dow Chemical Co.. Midland, Mich. Dunlop Tire A Rubber Corp., Buffalo, N . Y , Eagle-Ptcber Sales Co., The, Cincinnati, Ohio. Elektrokeraisk, A. 8., New York. N. Y. English, Miller A HOckett, Hutchinson, Kans. Everett, H. F., A Associates, Allentown, Pa. Fairbanks, Morse A Co., Chicago, 111. Federal Building Material Co., Tulsa, Okla. Federal Portland Cement Co., Inc., The, Buffalo, N . Y. Feltrok Insulation Manufacturing Co., Tacoma, Wash. Fetzer A Fetter, Salt Lake City, Utah. Firestone Tire A Rubber Co., The, Akron, Ohio. Flannagan, Eric O., Henderson, N. O. Forty-Eight Insulations, Inc., Aurora, HL Foster, L. A.. Co., 9t. Louis. Mo. Frazier-Simplex, Inc., Washington, Pa. Fuel Economy Engineering Co., 8t. Paul, Mftffl. Olobe-Wernicke Co., The, Norwood, Ohio. __ Gorman-Lavelie Plum bing A Heating Co*, The, Cleveland, Ohio. . * O r a D d Island, C ity of, W ater A Light D epartm ent, Orand Island, Nebr. Great Western Sugar Co., The. Denver. Colow Greenwood Electric Light A W ater P lant, OrMHI- wood, Miss. Gulf States Paper Corp., Tuscaloosa, Ala. Gypsum Lime A Alabasttne, Canada, L td., Toronto, Canada. 33 34 C om m ercial S ta n d a rd C S117-1/9 Hahn, Stanley W., Detroit, Mich. Hannaford, Samuel, dr Sous, Cincinnati, Ohio. Haralson A Mott, Fort Smith, Ark. Ifrlfenstellar, Hirsch A Watson, St. Louis, Mo. Hrrsbey Chocolate Corp., Hershey, Pa. Hipglns, Charles H., New York, N. Y. nocppner-Bartlett Co., Eau Claire, Wis. llohnes Foundry Co., L td., Sarnia, Ontario, Canada. Hooker Electrochemical Co., Niagara Falls, N. Y. nope, Frank L., San Diego, Calif. Hughes Tool Co., Houston,Tex. Imperial Tobacco Co., Ltd., The, Richmond, Va. Inland Paper Board Division, Federal Paper Board Co,, Inc., Versailles. Conn. Insulating Products Co., Aurora, 111. Insulation Products Ltd., Hamilton, Ontario, Canada. Interlaken Mills, Flskeville, R. I. International Shoe Co., St. Louis, Mo. Ivey, Edwin J., Inc., SeattU, Wash. Jamme, Bernard E., Summit, N. J. Jersey Central Power A Light Co., Long Branch, N. J. Jones A Laughlin Steel Corp., Pittsburgh, Pa. Kansas City Star Co., Flambeau Paper Division, Park Falls, Wis. Kansas State College, Department of Architecture, Manhattan, Kans. (General support.) Keystone Steel A Wire Co,, Peoria, 111. Latenser, John, A Sons, Omaha, Nebr. Law, Law, Potter A Nystrom, Madison, Wis. Levine, Ernest, New Brunswick, N. J. Levy, Will, St. Louis, Mo. Lockhart Power Co., Lockhart, S. C. Logansport. City of, Logansport, Ind. Magma Copper Co., Superior, Arlz. Magnolia Petroleum Co., Beaumont, Tex. Mann A Co., Hutchinson, Kans. Marathon Corp., Rothschild, Wis. Materiales Aislantes, S. A , Monterrey, N . L., Mexico. Merrill, Simms A Roehrlg, Honolulu, Oahu, T . H. Miller A Vrydagh, Terre Hante, Ind. Milwaukee Solvay Coke Co., Milwaukee, Wis. Mooser, William, San Francisco, Calif. Morell, N. L., Bethlehem, Pa. Morton Salt Co., Manistee, Mich. Mueller. Hair A Hetterich, Hamilton, Ohio. Muhlenberg Bros., Reading, Pa. National Gypsum Co., Buffalo, N . Y. National Rock Wool Sales, Inc., Lagro, Ind. Nazareth Cement Co., Nazareth, Pa. Nelson, Albert L., St. Louis, Mo. Newton Falls Paper Mill, Inc.. Newton Falls, N. Y. Northwestern Public Service Co., Huron, S. Dak. Oklahoma, University of, Norman, Okla. Oneida, Ltd., Oneida, N . Y. Overbagh, H. Malcolm, Hollis, N. Y. . Owens-Cornlng Fiberglas Corp., Toledo, Ohio. Pasadena Municipal Light & Power Department, Pasadena, Calif. Pennsylvania Institution for Defective Delinquents, Huntingdon, Pa. Pennsylvania Salt Manufacturing Co. of Washing ton, Tacoma, Wash. Pepper, George W., Jr., Philadelphia, Pa. Pepsi-Cola Co., New York, N. Y. Perfect Seal Rock Wool Manufacturing Co., W al worth. Wis. Phelps A Dewees A Simmons, San Antonio, Tex. Philadelphia. City of, Bureau of Water, Departm ent of Public works, Philadelphia. Pa. Pllbbury Mills, Inc., Minneapolis, Mhm. Pittsburgh) Fiale Glass Uo., Barberton, Ohio. Poe, C. w ,, Co.. The, Cleveland, Ohio. Port Huron Sulphite A Paper Co., Port Huron, Mich. Post Power Supply Co., Appleton, Wis. Public Serrloe Co., of New Hampshire, Manches ter, N. H. Resnikoff, Abraham, New York, N . Y . Revere Sugar Refinery, Charlestown, M ato. Rhinelander Paper Co., Rhinelander, Wis. Ritchie, James H .,A Associates, Boston, Mass. Riverton Lime A stone Co., Ine., Riverton, Va. Robert A Co. Associate, Inc-, Atlanta, Ga. Rohm A Haas Co., Philadelphia, Pa. Rosenblatt A Kerstcin, Inc., Charleston, W. Va. Russell, Crowell, Mullgardt A Schwarz, St. Louts, Mo. Saint Croix Paper Co., Woodland, Maine. Salem Lime A Stone Co., Salem, Ind. Schaeffler, Joseph C., New Rochelle, N. Y. Sealtite Insulation Manufacturing Corp., W aukesha, Wis. Seattle, C ity of. Department of Lighting, Seattle, Wash. Servel, Inc., Evansville, Ind. Shell Oil Co., Inc., New York, N. Y. Shutze A Armistead, Atlanta, Ga. Sleeper, Harold R., New York, N. Y. Smith, Hinchman A Grylls, Inc., Detroit, Mich. South Carolina Power Co., Charleston, S. C. Southern Colorado Power Co., Pueblo, Colo. Southwestern Gas A Electric Co., Shreveport, La. Spreckels Sugar Co., San Francisco, Calif. Spun Rock Wools, Ltd., Thorold, Ontario, Canada. Standard Brands, Inc., New York, N . Y. Staub A Rather, Houston, Tex. Stetson, John B., Co., Philadelphia, Pa. Stoetzel, Ralph, Chicago, 111. Tam pa Electric Co., Tampa, Fla. Taylor, Ellery Kirke, Iladdonflcld, N . J. Taylor, Ellis Wing, Los Angelc-s, Calif. Temple, Seth J., A Arthur, Davenport, Iowa. Texas Technological College, Department of Archi tecture, Lubbock, Tex. (General support.) Tex-Rock Insulation Manufacturing Co., Temple, Tex. Thorne, Henry Calder, Ithaca, N. Y. Tidmarsh Engineering Co., Tucson, Arlz. Tobin Packing Co., Albany, N. Y. Toledo, City of, Division of Water, Toledo, Ohio. United Insulating Co., Little Rock, Ark. United States Mineral Wool Co., South Milwaukee, Wis., and Stanhope, N. J, United States Rock wool Co., Salt Lake City, U tah. Virginia, City of, Water and Light Department, Vir ginia, Minn. Virginian Polytechnic Institute, Blacksburg, Va. (General support.) Virginia Railway Co., The, Princeton, W. Va. Vogel, Willis A., Toledo, Ohio. Walsh, Louis A., Waterbury, Conn. W atervliet Paper Co., Watcrvliet, Mich. Welch, Carrol E., Huntington, N. Y. West, Albert E., Boston, Mass. West Texas Utilities Co., Abilene, Tex. Western Electric Co., New York, N. Y. White, J. G., Engineering Corp., The, New York, N . Y. W hittenton Manufacturing Co., Inc., T aunton, Mass. Wickes Boiler Co., The, Saginaw, Mich. Wight A Wight, Kansas City, Mo. Wigton-Abbott Corp., Plainfield, N. J. Wilbur-Suchard Chocolate Co., Inc., Lltitz, Pa. Willatsen, Andrew, Seattle, Wash. Williams, Coile A Blanchard, Newport News, Va. Willson, Fred F., Bozeman, Mont. Wilson, Adrian, Los Angeles, Calif. Wilson, Town of, Inc., Wilson, N. C. Wolff A Munier, Inc., New York, N. Y. Woolsulate, Inc., Salt Lake City, Utah. Wright A wright, Detroit, Mich. (General support.) W yandotte Chemicals Corp., Wyandotte, Micb. Zimmerman, A. C., Los Angeles, Calif. U. 8. GOVERNM ENT Agriculture, United States Department of, Division of Purchase, Sales and Traffic. Washington, D. C. Army, Departm ent of the, Washington, D. C. Federal Works Agency, Public Buildings Adminis tration. Washington, D. C. (General support.) Interior Departm ent, Office of Indian Affairs, Wash ington. D. C. Justice Departm ent, Bureau of Prisons, Washington, D. O. Navy, Departm ent of the, Bureau of Yards and Docks, Washington, D. C, United States Capitol Power Plant, Washington, D. C. COMMERCIAL STANDARDS CS No. Item CS No. Item 0- 40. Commercial standards and their value to51- 35. M arking articles made of silver In combina business (third edition). tion with gold. 1- 42. Clinical thermometers (third edition). 52- 35. M ohair pile fabrics (109-percent mohair plain 2- 30. Mopsticks. velvet, 100-percent monair plain frieze, and 3- 40. Stoddard solvent (third edition). 50-percent mohair plain frieze). 4- 20. Staple poreclain (all-clay) plumbing fixtures5. 3- 35. Colors and finishes for cast stone. 5- 46. Pipe nipples brass, copper, steel, and wrough5t 4- 35. Mattresses for hospitals. iron (second edition). 55- 35. Mattresses for institutions. 6- 31. Wrought-iron pipe nipples (second edition)5. 6- 49. Oak flooring (third edition). Superseded by CS5-46. 57- 40. Book cloths, buckrams, and impregnated 7- 29. Standard weight malleable iron or steel fab ric for bookbinding purposes except screwed unions. library bindings (second edition). 8- 41. Gage blanks (third edition). 58- 36. Woven `astic fabrics for use in overalls (over- 9- 33. Builders' template hardware (second edition). nil (iustic webbing). 10- 29. Brass pipe nipples. Superseded by CS5-46. 59- 44. Textiles--testing and reporting (fourth 11- 41. Moisture regains of cotton yarns (second edition). edition). 69-48. Hardwood dimension lum ber (second edi 12- 48. Fuel oils (sixth edition). tion) . 1314- 44. D ress patterns (fourth edition). 43. Boys' button-on waists, shirts, Junior and 61- 37. Wood-slat Venetian blinds. sport shirts (made from woven fabrics) 62- 38. Colors for kitchen accessories. (third edition). 63- 38. Colors for bathroom accessories. 15- 46. M e n 's pajama Sites (made from woven fab64- 37. W alnut veneers. rics) (third edition). 65- 43. Methods of analysis and of reporting fiber 16- 29. W all paper. composition of textile products (second 17- 47. D iam ond c m drill fittings (fourth ed ition ). edition). 18- 29. H ickory golf shafts. 66- 38. Marking ofarticles made wholly or in p art of 19- 32. F ou n d ry patterns erf w ood (second e d itio n ). platinum. 29-47. Stap le vitreous china plu m bin g fixtures 67- 38. M arking articles made of k arat gold. (fourth edition). 68- 38. Liquid hypochlorite disinfectant, deodorant, 21- 39. Interchangeable ground-glass joints, stop and germicide. cocks, and stoppers (fourth edition). 69- 38. Pine oil disinfectant. 22- 40. B uild ers' hardware (nontemplate) (second 70- 41. Phenolic disinfectant (emulsifying type) edition). (second edition) (published with C871-41). 23- 80. Feldspar. 71- 41. Phenolic disinfectant (soluble type) (second 24- 43. Screw threads and tap-drill sizes. edition) (published with CS70-41). 26-30. Special screw threads. Superseded b y 72- 38. Household insecticide (liquid spray type). CS24-43. 73- 48. Old growth Douglas fir, Sitka spruce, and 26- 30. Aromatic red cedar closet lining. Western hemlock standard stock doors 27- 36. M irrors (second edition). (fourth edition). 28- 46. C otton fabric ten ts, tarpaulins and covers74- 39. Solid hardwood wall paneling. 75 (second edition). - 42. Automatic mechanical draft oQ burners 29- 31. Staple seats for water-closet bowls. designed for domestic Installations (second 30- 31. Colors for sanitary ware. (W ithdraw n as edition). com m ercial standard, M arch 15, 1948.) 76- 39. Hardwood Interior trim and molding. 77 31- 38. W ood shingles (fourth ed ition ). - 48. Enameled cast-iron plumbing fixtures 32- 31. C o tto n d o th for rubber an d pyroxylin coating. (second edition). 33- 43. K n it underw ear (exclusive of rayon) (second 78- 40. Ground-and-polished lenses for sun glasses edition). (second edition) (published with C 979-40). 34- 31. Bag, case, and strap leather. 79- 40. Blown, drawn, ana dropped lenses for sun 3 5 - 47. H ardw ood p lyw ood (third ed itio n ). glasses (second edition) (published with 36- 33. Fourdrinier wire d oth (second edition). C878-40). 37- 31. Steel bone plates and screws. 38- 32. H osp ital rubber sheeting. 89-11. Electric direction signal systems other than 39- 37. W ool and part woo) blanxets (second edition). semaphore type tor commercial and other (W ithdrawn as commercial standard, July vehicles subject to special motor vehicle 14, 1941.) laws (after market). 40- 32. Surgeons' rubber gloves. 81- 41. Adverse-weather lamps for vehicles (after 41- 32. Surgeons' latex gloves. market). 42- 43. Structural fiber insulating board (th ird ed i82- 41. Inner-controlled spothunpe for vehicles (after tion). market). <3-33. Grading of sotpbonated Os. 83- 41. Clearance, marker, and Identification lamps 44- 32. A pple wrapt. for vehicles (after market). 45- 48. D ou glas fir plyw ood (eighth ed ition ). 84- 41. Electric tall lamps for vehicles (after m arket). 46- 49. H osiery lengths and sizes (fourth ed ition ). 85- 41. Electric license-plate lamps for vehicles (after <7-34. M arking of gold-filled and rollod-gold-plate market). articles other than w&tcbcases. 86- 41. Electric sto p lam ps for v eh icles (after m ar <8-40. D om estic burners-for Pennsylvania anthra ket). cite (underfeed type) (secoud edition). 49-34. C h ip board, lam inated chip board, and m is cellaneous boards for bookbinding purposes. 3 9 4 4 . B in d ers board for bookbinding and other purposes. 87- 41. R ed electric warning lanterns. 88- 41. Liquid burning flares. 89- 40. Ifaidwood stair treads and risers. 90- . (Reserved for power shovels and cranes). 91- 41. Factory-fitted Douglas fir entrance doors. 35 < * 3 w * f2 H jg r _ --w w . - .F<i4iwanyia4^ ^ 36 Commercial Standard CS117-]fl 111o s No. Item CS No ' Item #2-41. Cedar, cypress, and lumber. redwood tank stock 126-45. Tank mounted air compressors. #3-41. Portablo electric drills (exclusive of high 127-45. Self-oontulnod mechanically refrigerated frequency). ^ drinking water coolers. 128-46. M-41. Calking lead. * *?? sites--woven fabrioa (other #5-41. Lead pipe. #6-41. Lead traps and bends. t o ) " "*6 m" k9d wlth TMular neckbami 129-47. #7-42. Electric supplementary driving and passing fr 84,917 wearlng "PP^el (eoond n#o8-42. As rt.iWsts ofiolrpNaiinctsie. s (after market). 136-46. " aierl.a's for art education in schools. . S i ? ' i!as fl,00r furnacns-Bravlty circulating type 131-46. Industrial mineral wool products, all types-- testing and reporting. 100-47. 1 orccluiii-enamolod * steel edition). utensils (tb rd 132-46.. Hardware cloth. 101-43. Fluo-cpnnerted oil-burning space heaters 133-46. Woven wire netting. 134- 46. in? ^ .vaporizing i>ow >ik!burners. . Oast aluminum cooking utensils (metal oomposition). !n?Ls' LRcservlrd ior J ,iesel and fuel-oil engines). 103-18. Rayon jacquard velour (with or without 136-46. Men's shirt sizes (exclusive of work shirts), ther decorative yarn) (second edition). 136-46. cotton) ^ *losp*ta*s (wooh and wool and 104-48. Warm-air furnaces equipped with vaporizing - /y p e oil burners (third edition). 137-46. Size measurements for men's and boys' shorts 106-48. Mineral woo! insulation for low temperatures (woven fabrics). 138-47 Insect wire screening. (second edition). . 139- 47. Work gloves. . 106-44. Boys' pajama sizes (woven fabrics) (second edition). 146-47. Testing and rating convectors. 107-46. Commercial electric-refrigeration condensing 141-47. Sme bars, blocks, plates, and fixtures. 142- 47. Automotive lifts. me--ei units (second edition). (Withdrawn as _,coTM!rlcrcial standard September 4, 1947). 143-47. Standard strength and extra strength per } ? " " ^reading auiomobilo and truck tires. forated clay pipe. 144- 47. J i r j i - Soiid-fuel-bummg forced-air furnaces, Fw ared metaI porcelain enaiIU`ied sanitary iiu -ij. J ire repairs vulcanized (passenger, truck and bus tires). 145- 47. Testing and rating hand-fired hot-water- -43. Earthenware fixtures. (vitreous-glazed) plumbing * supply boilers. 146-47. Gowns for hospital patients. 147-47.. Colors for molded urea plastics 13-43. Homogeneous fiber wallboard. 148-48.. M en' circular flat and rib knit rayon un 113"44. Oil-burning floor furnaces equipped with derwear. ' , , , , , vaporizing pot-type burners. 149- 48. Utility type house dress sizes. ?1" 3- Hospital siieeting for ihattress protection. 166-48. { JTM - R"rcelain-eriainelod tanks for domestic use. t^ X ) su* 1 < proda" d from i .tIIq' Jlifuniliozed-flber drain and sewer pi|>e. 151-48. Body measurements for the sizing of apparel" 117-49. Mineral wool insulation for heated industrial equipment (second edition). r(fcoLr -t^haeaki Sn'i.-t.b-uanbd!fe3r'wteialre Irnsd,usatnryd).ehikLren rpi f ;ti i f , k.`?5,or,)e?'olr5' and novelties of silver. 152-48. Copper napbthenate wood-preservative (E) 119-45.1 Dial ments) . indicators (for linear measure 153-48. Body measurements for the sizing of apparel 126-48. standard stock pondorosa pine doors (third 154- . for girls (for (Reserved for the knit-underwear wire rope.) industry) edition) 155- Body49m. easurements for the sizing of apparel I1S22l-i45'. SWr0eIs?teernn'sh, es,mlpl.osclktcpsly(wwoovoedn fabrics). 156- 49. for boys Colors for (for the knit-underwear polystyrene plastics. industry) *'* 167-49. Ponjierosa pine and sugar pine plywood. 1(2E6n-127.4i^rerf^abrriecartoddr hkomSndesP(#sWeodo*nd(8eeCdOitniodn)." " > 115689--4499.. BMuond-gellafsosrlmenssfeosr mgiraldse' aopfpgarroeul.nd and polished plate glass, thereafter thermally curved. war oondltio^w U ^a^kw ^tow ^rdem l^reviskm 68(68 " * emergenc7 commercial standard, drafted under . S. SOVESNMEST FSISTISS OFFICE, 1 . 4 .