Document n2Nxo1k2rEO1gYK7R8DweD06

FILE NAME: US Government Contractor Regulations Including Shipyard Regulations (GCR) DATE: 1967 Dec DOC#: GCR022 DOCUMENT DESCRIPTION: Military Specification - Cement, Insulation, High Temperature |.n n i -i, ^ Ilif t - r o t H ai-ntlftm a ttu a kik. r r - ^ \ J -r. t >* b t r * . r *'#* \, -*>* 11 r*;.-; t'j ,v .'. , 1* MILITARY SPECIFICATION j '| ^ d u *** CU4ENT. INSULATION, HIGH TEMPERATURE t v u / m i.-c-m in s<uT-rsnrcr.-rr>:` filL-c-ieM i; 17 Sep liftJ (See 6.2) This specification is mandatory for use by 11 Departments and Acencie* of the Department of Defense. Z. SCOPE 1.1 This specification covers high temperature insulation cement for thermal control of irregular surfaces of equipment and piping operating at temperatures between 100 and 1800F. 2. APPLICABLE DOCUMENTS r r 2.1 The following documents of the issue in effect on date of Invitation for bids or request for proposal, form * part of the specification to the extent specified herein; SPECIFICATION FEDERAL UU*S-48 Sacks, Shipping Paper. STANDARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes. MIl-STD-129 - Marking for Shipment and Storage. (Copies of specifications, standards, drawings, and publications required, by suppliexL in connection with specific procurement functions should be obtained from the procuring S M activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of this specification to the extent speciiied herein. Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) r C 166 Covering Capacity and Volume Change Upon Drying of Thermal Insulating Cement. C 177 Thermal Conductivity of Materials by Means of tho Guarded Hot Plate. C 5S5 - Adhesion of Uried Thermal Insulating Cement. C 5S4 - Compressive Strength of Thermal Insulating Cement. C SS6 - Linear Shrinkage of Performed High Temperature Thermal Insulations Subjected to Soaking Heat. C 40S - Consistency of Ket-Mixed Thermal Insulating Cement. C 42X Weight Loss by Tumbling of Performed Thermal Insulation. (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, Pa. 19103.) UNIFORM CLASSIFICATION COMMITTEE Uniform Freight Classification Rules (Application for copies should be addressed to the Uniform Classification Committee, 202 Union Station, S16 Nest Jackson Boulevard, Chicago, Illinois 60606.) (Technical society and technical association specifications and standards are generally available for reference from libraries. They are also distributed among technical groups nd using Federal agencies.) r FSC S640 W u , .p i.. I ^ ... _ H ; I JM H : j . \ , .) Ht!.-C -*#010 3. KfcQUI KCMf-NTS 3.1 Material The insulation cement shall be composed of dry mixture of refractory * tCr*al rut-~k or oineral fiber, asbestos fibers, and clay binder, thoroughly mixed to obtain uniform distribution of the ingredients. The composition of the cement shall be such that, when properly mixed with fresh water, it can be applied with a trowel or by hand. 3.2 Sulfur content. The sulfur content shall not exceed 0,50 percent (see 4.3,1). 3.3 Physical rcoulrements. The cement shall conform to the physical roquireoents shown in Tabic 1, TABLE 1 - Physical Reguirercnts Coverage (wet), board feet per 100 pounds ot dry"material, minimum Shrinkage volumetric, wet to dry, percent, maximum Density, after being molded and dried, pounds per cubic feet, maximum Compressive strength, at 5 percent deformation, minimum psi Mechanical stability, loss in weight, percent, maximum: After first 10 minutes After second 10 minutes Dry adhesion to steel, minimum psi Linear shrinkage, percent, maximum; After 6 hours at 7S0*F After 6 hours at 1200*F After 6 hours at 1S00*P ' Thermal conductivity, maximum 6tu in. per hr. sq. ft. degree Fahrenheit at mean temperature of: 200*F S00*F 700*F Corrosion of steel 50.0 20.0 30,0 10.0 40.0 60.0 3.0 1.0 2.0 S.O 0.70 0.85 0.95 Sono jttt < QUALITY ASSURANTE PROVISIONS *AJ 4.1 Responsibility for Inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for tho performance of all inspection require- ments as specified herein. Except as otherwise specified, the supplier may utilize his own facllit ies or any commercial laboratory acceptable to the Government. The Government roseyyos the right to perform any of the inspections set forth in the specification where *uch inspections arc deemed necessary to assure supplies and services conform to prescribed requirements. f.2 Sampling for quality conformance inspection. Sampling for quality conformance in spection shall be performed in accoruance with the provisions set forth in MIL-STD-105, ex cept where otherwise indicated hereinafter. For purposes of sampling, an inspection lot for Inspection and tests shall consist of all material offered for delivery at one time. 4.2.1 Extuninnt ion of filled containers. A random sample of filled containers shall be taken from each lot in accordance with Mll-STD-105 at Inspection Level I and acceptable quality level - 4,0 percent defective to verify compliance with requirements regarding fill Closure, marking and all other requirements not Involving tests. Containers shall be e x amined for defects of construction of the container and the closure, for evidenco of leakage, and for unsatisfactory markings; each sample filled container shall also be weighed to determine the amount of contents. Any container in the sample, having one or mora defects, or under required fill, shall not be offered for delivery. If the number of defective _ containers in any sample exceeds tho acceptance number for the appropriate sampling plan of MIL-ST0-15, this s h a l l be cause for rejection of the lot represente*! by the sample. 4.2.2 Testing. Frem each Inspection lot, sample containers shall be selected at dom, as follows, for thu tests specified in 4,3. Lot Size IS or less 16 to 300 301 to 80tt 801 and over Sample Size "1 2 3 ' > There shall he no evidence of failuro to meet the specified requirements. 4.1.2.1 Thermal conductivity. The test of 4.3.9 need only be conducted for one of the following reasons: J Mll.-C- JbnlD (a) If, vlilitn five years preceding tlie dnte of invitation for Kids, the cement has nut been 'tested by an acceptable; testing laboratory and found in Compliance with the- requirementr. of 3.3. (t>) If the cement offered for delivery is not the same in all respects as that previously tasted. 4.3 Test procedures. 4.3.1 Sulfur content. The sulfur content shall be determined by either the conhustic or evolution method. 4.3.2 Wntcr-ccmont ratio for proper troweling consistency. A weighed quantity of drv cement shall*"be nixed with a weighed quantity of water to determine the water-cement ratio for satisfactory troweling consistency. For tests to determine compliance with tins Specification the water-cement ratio shall lie that which gives the measured ennj.i .t-i.ev of 3s to 4S percent by Method A, or 7 to 9 inches by Method H when dctormim-d l,y the |.>m i-iiuri' outlined in ASTM-C 40S. 4.3.3 Ciiverngc i.-gmiilY and voInmotrie r.hrttikrirn. The cover ago capacity and volunoirl shrinkagn sliu iriin .Toteiw]iind'f n "uccoriraiicc with A.kTM-C loo. 4.3.4 WeiicMy, Mr.1.led specimens shall ho air dried for 24 hours and then dried at 30ll*H in an flc'cYrlc oven to constant weight and the density computed on the oven-dried volume. 4.3.5 Compressive strength. Compressive strength shall bo determined in accordance with ASTM-C j s t :-- --------- -- 4.3.6 Mechanical stability. Mechanical stability as measured by weiitlit loss shall ho determined in accordance' wTtli XSlil-C 421. 4.3.7 Dry adhesion to stcol. Dry adhesion to steel shall be determined in accordance with ASTM-C J S T .-- -------------- 4.3.8 Linear shrinkage. Linear shrinkage shall be determined in accordance with ASTM-C 356, at the temperature and duration specified in Tahlc I. 4.3.9 Thermal conductivity. Tharmal conductivity Shall bo determined in accordance with ASTM-C T 7 T .---------------- t 4.J.10 Corrosion-rosisting properties. Cement in plastic form shall bo applied to a polished steel test plate 4 incites wide and S inches long. The test plate shall he of clear finish color rolled strip steel, 0.020 inch thick, American quality quarter hard, temper i.o. 3, weighing 0.8S pound per square foot. The cement shall be builtup to a 3-inch thiclnejs on the test plate in a wooden mold 4 inches wide and S inches long and allowed to stand at room temperature for 30 days. Then the material shall be removed from the test plate. The tost plate shall he immediately cleaned with water, wiped dry, and examined for corrosion. Corrosion along the edges of the plate will be disregarded, 4,4 Preparation for shipment. Examination of packing and marking for shipment shall be mado for conformance with the requirements of Soction 5. 5. PREPARATION FOR DELIVERY (Preparation for delivery requirements specified herein apply only to direct Government procurement. Preparation for delivery requirements between contractors and sub-contractors shall be as specified in the individual order.) - 5.1 Packing. Packing shall be Level A, 8, or C .as specified (see 6.1). 5.1.1 Love 1 A . The shipping sacks conforming cement shall be packed to the requirements of in quantities of SO pounds in paper UU-S-48, sack number as applicable. 5.1.2 Level II. The shipping sacks conforming cement shall be packed to the requirements of in quantities of SO pounds in paper UU-S-48, sack number as applicable. $.1.3 Level C . The cement shall be packed in containers in a manner to insure safe delivery and acceptance at destination. Containers shall comply with the Uniform Freight Classification Rules or other carrier regulations applicable to the mouo of transportation. - 5 '->> inuir'""'' , MIL-C-2861U { $2 Htrking. in addition to any special narking required by the contract or order, irking for shipment shall bo in accordance with M1L-STD-129. 6. NOTES 6.1 Ordering lata. Procurenont docunents should specify the following: (t) Title, nunber, and dote of this specification. (b) Selection of applicable level of packing required (see 5,1), 6.1 PRECLUDE TCfnHnAONJCKEDSTFjrRnOCMN"p nr OF vTtOliUrS IWISCSTUVEriMMTHLE C E H X A T N E G N E T S OF CHANCES (DELETIONS, ADDITIONS, ETC.) FROM THE PREVIOUS ISSUE OF THIS DOCUMENT. Custodians; A m y - HE Navy - SII Ale Force - 84 Preparing activity: Navy * SH (Project 5610-0 1 SS) -i Review activities: Amy - Mb Navy * $11 A ir Force - 84, 85 ,'i PRMKtfnei W8*IH>iiVlUt } 1 6 KA * WA 5 'i t ** "t n