Document 6Yb7d5rpw7xJVdkywyqJvVJ6

FILE NAME Mundet Cork MCK DATE 1960 June 22 DOC MCK007 DOCUMENT DESCRIPTION Meeting Minutes - Technical and Research Committee - National Insulation Manufacturers Association TECHNICAL & RESEARCH COMMITTEE MEETING New York N. Y. a June 22 1960 Molded Section Chairman E. C. Shuman called the meeting to order at 9:30 A.M. with the following in attendance oo. - a oe, E. C. Shuman Chairman L. L. Collogne Duane Davis oo M. E. DeReus D. Gaches | H. P. Hoopes V. L. Miller W. R. Seipt - T. J. Walters . D. B. Wingerter R. C. Parl ett | Corning Fiberglas Corp. Mundet Cork Corporation | The Ruberoid Company Union Asbestos & Rubber Company Manville Sales Corp. . Fibreboard Paper Products Corp. Pittsburgh Corning Corp. . . Keasbey & Mattison Company The Ruberoid Company Manville Corp. National Insulation Mfrs Assn and The Section reviewed made the following recommendations after dis- cussion of the specifications listed on study 1-0015091 dated 12/15/59 Insulation Felt Thermal Asbestos Fiber This pertains pertains to a woven asbestos blanket made only by Union Asbestos & Rubber Company so was referred first to Mr. DeReus for his and recommendations which will be reviewed later by the Technical & Research So a Committee oO, Tolerances Tolerances 1/26/60 dated 00281913 SHIPS Insulation Block Thermal Par 4 Dimensions & Tolerance Eliminate the table form and the Thickness - As specified and Material shall be furnished in tbleorcmks | form in 18 length by 3 width or 36 length by or 12 width Blocks shall be furnished in thicknesses of ; 1-1 2 2-1 3 3-1 or 4 = in dimensions are length == 1/8 1/8 width 1/16 thickness 1/16 " : Par 4.2 Table II State compressive strength as follows 10 per cent deformation at not more than CRMC 000304 000304 2 | Change Density Class 3 to 24 pct after Change Mr. Seipt to confirm this after checking . Conductivity at 800 F of Class 3 to 0. 78 and Class 0.80 These values are considered to be more consistant with current production __ 2781c dated 2/15/60 Insulation Pipe Covering Thermal - Errors | apparently typographical require correction Table II Thickness of _ pipe size by nominal 3-1 thick should be 3-27 32 3-1 " Pip~ size 14 and larger and nominal " thick actual thickness thickness should be 4-15 actual _ Table III Type II change density to 26 pcf of Par 3.4.2 Table I under Diameter tolerances , 1-1 and inch pipe sizes should be changed in the plus tolerancteo 3/64 recommended | by one manufacturer The whole which is new and not previously re- viewedby NIMA members should be studied and recommendations Mr. Barnhart as early as possible i sent to Par 4.4 Inspection Mr. Wingerter agreed to study this section and recommendations to the Committee make Far 2. Possible Test Failure - This calls for density hardness | and modulous of rupture tests with no designation of the laboratory in which it must be tested While composition stability thermal k abrasion and heating loss & shrinkage specified to be made At Government Whereas 4. states Qualification Tests shall be laboratory of conducted by designated by the Bureau a laboratory Ships but does not state this must be a Government laboratory - what is intended 523a dated Calcium 5/23/52 Insulation Block Pipe Covering & Cement Thermal . Silicate For temperaturetso 1200F actual thicknesses - Revise Table II showing Table II for various nominal thicknesses to conform exactly to Thickness in 1-2781c including | x corrections in typographical errors on 3-1 " pipe making size 3-1 nominal thickness to read 3-27 for the actual thickness listed and 14 and larger 5 thick to read 4-15 for the actual thicknpeispse sTiazbelse II in present 523 only goes up to 2-1 nominal thickness but it is and desirable to have it revised as in 2781c up to including " thick since it is NIMA's aim to have all Government that ultimately one single specifications specification for read the same so - Federal will be used byall services one type of insulation e the | Par 1.2.1 Thickness Tolerance " tolerance of plus 1/8 inch or minus 1/16Cihnacnhgien aasctiunal27t8h1iccktnoesrseasdhoA wn in Table II will be permitted 000305 Par 2. 2 Omit all reference to Commercial Standard CS 131 substitute All tests shall be made in accordance with ASTM methods as listed in 4.3 __ or / Par 3.2.1 Change to read sections 36 inches long and 6 wide . : 12 inches Table Par 3.2.2 I Revise Physical Properties where necessary to oo conform to recent NIMA approved revisions in ASTM Spec C 345-54 which lowered the conductivity oo | 4.3.1 Par 4.3.1 - Density - Change method of test to read in accordance with ASTM C 303 | - Par 4. Thermal Conductivity Change method of test to read in _ accordance with ASTM 177 or 335 whichever isapplicable - Par 3,3 Compressive Strength Change ----- be determined in accordance with ASTM Method 165 for dry strength for compressive strength after emersion Saturate a test specimen conforming to Section 4 of Method C 165 and then test in accordance with Method C 165 Report the wet strength as a percentage of the dry strength Heating shall shrinkage Par 4.3.6 Change to read loss and in accordance with test method ASTM C 356 oe be determined Par 4.3.7 - Change to read ----- be determined in accordance with test method ASTM C166 ee Cements 00500 dated 5/24/56 Insulating Thermal Only type I and V are in the province of this section and where recommended for the following revisions it being understood that a separate specification will be written for each type in the future Type 1 85 Magnesia Thermal Insulating Cement - Revise entirely to issued conform with newly ASTM 193-59T in all respects including Scope Physical Properties Properties Par 2 will be revised to read etc. with the exception that Composition as follows The cement shall be composed predominately by weight of basic hydrated magnesium carbonate and combined with asbestos fiber The percentage requirements to be eliminated as well as the Composition requirement chemical of under Method of Testing Par 5 ASTM C 193-59T analysis II Type Asbestos Thermal Insulating Cement - Revise entirely to conform in all respects properties wording etc. to ASTM 194 recently proposed revised Insulating Type V Diatomaceous Silica Thermal to conform to recently issued C197-59T Cement - Revise entirely Type IV Expanded or Exfoliated Vermiculite Thermal Insulating $ Cement- Revise entirely to conform with recently issued ASTM C 196 | 59T 2908A - Insulation- which 3/29/60 Cements Finishing Insulation- Type I Asbestos this Section of could be of interest to NIMA was reviewed and found satisfactory Type II is a mineral fiber cement in the province of the - Gaches 2886 Plaster Magnesia - Mr. offered to determine under . wrehqautisrepdecrievfiisciaotnitohne Navy purchased magnesia cemetonfitnd whether it | HH Insulating Block 1-55la 1-55la & Pipe Covering Glass ~ ThermalfoCrellular Conductivty Mr. Miller advised this specification is in Washington revision to add the higher temperature material class e foamed silica The T & R Com- mittee recommended that the specificatiobne revised eliminating all Tables recommending various thickness for different temperature conditions as these are actually in a sense application specifications Also the detailed description of the Guarded Hot Plate Method of Test for be eliminated and reference to ASTM Method 177 Conductivity should to conform to other Federal specification forms - and 335 used again | oS Magnesia 554 Insulation Thermal Block Pipe & Tubing - Revision of this specification requested NIMA in letter of July 1 1959 to G.S.A. was after a follow up letter September 18 W. Thomasson - it would be issued as NIMA acknowledged and stated recommended It is felt a strong follow up letter should be sent as Mr. Thomasson has retired and his do better on the many specifications we are revising if it is psouicncteedssoourt mthaayt NIMA Committee spends much time and effort in bringing these specifica- tions up to date and we hope in the future it will not take whole to a have them issued year when in the mean time any Government purchases have would to be made on obsolete specifications Corps of Engineer Guide Specification Heat Distributing System - CE 301.21 Draft August 12 1959 - Since no reply has been received from the of Engineers on NIMA letter Corps of June 1 in which we outlined in six pages the CCoommmmiitttteeee'swarsecnoemcmeesnsdaartyions for revision no further action by the ASTM Dimension Standards - Nesting Pipe of Block and Pipe Insulation - This Sizes and Dimensional Tolerances subject was discussed at considerable length preparatory to the next days meeting and conclusions arrived following day are reported in the Minutes of the combined Session at the Respectfully submitted 000307 R. C. Parlett Sec Protem