Document pmaKo2p7LvVq7YwmK6wObgzgj

NIMA - T & R CC.'CtITTEE Mineral Fiber Section March 6, 1P70 The scheduled meeting of the T & R Connie tee, Mineral Fiber Section, convened at 9:00 in New York City at the Summitt Hotel with the following persons in attendance: C. E. Ernst - JM V. Gubar - CSC A. Kevlin - CCF L. J. Lash - JH L. H. Mills - CSC R. Peterson - OCF The agenda leans were acted upon ae follows: 1. Temperature Limits - V. Gubar Action: Mr. Cubar discussed the work conducted on the All American Vibrator on various samples conducted at 400, 500, and COO I', temperature. The vibrator cycle used was that described in Coast Guard Specification 32MA3C. The only conclusion that was made from chesc is that when the binder is completely ramoveH from the insulation in contact with the hot surface and the product vibrated, the thickness of the insulation is reduced due to the felting action of the vibration on the unbonded glass fiber. Mr. C. E. Ernst thought that more reseerch should be done to determine the proper vibration cycle. Therefore, the committee concluded that the criteria established at the April 15, 1%9 meeting was sufficient to demonstrate Che temperature limit.- of Che product. IV.uever, a warning should be incorporated in product literature similar to chat shown in tho Johns-ilsnvilie Flame-Safe Fiber Glass Pipe Insulation brochure as follows: Note: At temperatures above 400F s limited amount of binder migration may occur in the insulation near the hot surface of the pipe. This does not impair the thermal effectiveness of Flame-Safe in aay way. Vibration in lines covered by ahort-fibered Insulations could causa the fiber:; to settle, eventually reducing the wall thickness with a resulting lose of thermal protection. It was sup-onccrf that the cotmccee continue to study what type of vibration cycle is needed to show the effect oa the insulaced equipment subject to vibration. Revisions to Hill-558 - lou Mills Action: Mr. Mills is to revise specification per committee reccmendeclons and submit a revised copy for approval. Mr. Cuhar is to supply Mr. Mills with the K factor .plus 10X to the specifi cation. Revisions to MIL-122023 - W. Gubar Action: Mr. Gubar suggested the revisions to this specification with the deletion of fiber diameter, shot content, binder concent, alkalinity *nd PH (substitute corrosion test) flra resistance (substitute flame spread) and add NIKI K valuas. In the 10/9/69 meeting in New York, the committee was to consider the idsa of combining this specification with HHI*553 for type 2 product and HHI-545 for type 2 products. Mr. Larry Lash meda the investigation and was requested in this session to :omoine the following specifications: MIL-I-2S13, MIL-I-15*75, MIL-I-16411, KIL-I-22023, MXL-I-22344, MIL-I-23128, using Fedcr.il Specification HHX-5S8 as a guide. The combined specification should also Include vibration, fire tests, and quality assurance programs. The draft should be made prior to the meeting in the Fall preferably by Stpeember 1, 1970. Any comments should be sane to Mr. Larry Leah or Lou Mills. U.L. Listings for Fire Hazard Classif .cation - W. Gubar Action: Mr. Gubar reported chat U.L. has received favorable comments and Mr. Cascluo advised chat evo manufacturers are changing their labels to use the BMC 15, Class 50 designation. The SO represents both fuel and smoke racing. Some members felt that they should also show the actual results on the labels. This would defeat the purpose of the project. However, some embers felt that laminators who are not multiple listens may have their products tested and this mey present e problem to the glass fiber industry if they report actual data. Potential Health Hazards of Thermal Insulation - Jack Barnhart Action: ASTM Adhoc Committee met December 22, 1969 at the Philadelphia Electric Company, Joan Moehel, Chairmen and Paul S. Maco, Secretary, Messrs. Barnhart, Gubar, Ed Davis, and other members of ASTI were present. It was concluded from the discussion and data presented by Mr. Cliff Seheckler of JolmsManville chat ASTM involvement to evaluate health hazards would lead eo considerable expenditures over a period of years for medical research, Without such evaluation participation in recommendations on the establishment of standards would lead to considerable litigation. -3- Mr. Barnhart discussed health legislation restricting use of duct liners in hospitals, aged homes, etc. The bill in Kansas, Massachusetts, and California '/as killed. However, there is pending legislation in Ohio, Kentucky and Indiana. There is also a concurrent resolution in Kansas ana California authoriz ing the legislative committee to voce on the provisions to make e seudy of this problem. The resolution in Kansas was killed. The resolution in California is still pending. Jack Barnhart also discussed the pending bill before the New York. Environmental Board concerning the health hazards of duct liners. There will be a hearing this suoner on this subject. Mr. 3amhart also advised that the Asbestos Workers Union will campaign against glass fibers by associating It to sir pollution. 6. Revision to MIL-I-742 - Al ICevlin Action: Mr. Kevlin is to incorporate all the comments and draft the new specification. The meeting adjourned at 3:00. Respectfully submitted, Walter Gubar, Chairman Mineral Fiber Section KINIJT2S OF t::z TECHNICAL AND RESEARCH COIITTEE MOLTCP SECTION NATIONAL INSULATION MANUFACTURERS ASSOCZATION March 6, 1970 New York, N. Y The meeting was called to order at 9:00 a.o. with the following in attendance: W. Schwingen B. Tower P. Saverscroa W. Lovett W. Sinclair J. Wilson J. McAllister GAF J-M OCF P-C P-C P-C Keene Agenda items were acted on as follows: 1. ASTM Specifications a. ASTM C233, Caleiua Silicate Pipe and Block Thermal Insulation, Proposed revisions. The negatives received by ASTM Clu on ballot of this proposed revision were discussad in detail and accepted. These changes will be incorporated in the next draft 1.) Workmanship section will he restated to read: "Since several requirements for this material are not easily defined by a numerical value, the insulation shall not have visual defects that will adversely affect the service quality." 2.) Corrections will be made in punctuation end metric equivalents where indicated or necessary. 3.) Thermal conductivity veluos for Type I shall revere to chose originally published, i.e.; Minutes of Technical Research Committee March 6, 1970 P.igc 2 Mean Temo K 200 F 300 F 400 F 500 F 600 Y 700 F 0.45 0.50 0.55 0.60 0.655 0.71 b. Proposed insi.de diameters of Rigid High Temperature Insulation. W. C. Turner, of Union Carbide, has proposed changes in recom mended inside diameter dimensions of rigid molded pipe insul ation to accommodate thermal expansion chat occurs on iron pipe at 1200F and to prevent opening up of longitudinal and butt joints in the insulation at these temperatures. It was the committee concensus chat, in view of the wide variances in iron pipe dimension (from full plus to full minus tolerance within e length of pipe), and the relatively few applications which Involve 1200F operating temperatures, there should be no major revision to recommended dimensions. Under severe operating conditions such as these, use of an ex pansion joint construction for longitudinal and butt joints was considered a possibility. c. Special Committee on Potential Health Hazards of Thermal Insulation. J. Barnhart summarized activities in this area relating to che ASTM Ad Hoc Committee on Potential Health Hazards of Thu rani Insulations and the legislative bills pending in California. Kansas and Massachusetts which would prohibit use of any potentially eirborn materials on the airstreao side of venti lating, heating and cooling systems. 2. StandardPackaging - GSA Recommendations. The Technical Services Branch of CSA, Fort Worth, Texas has requested induecry-co-operation in standardizing on quantities per carton on pipe insulation furnished under MIL-1-2781. Review of NIMA status versus recommended packaging indicates tii.tt lot most uenbers about 342 of the sizer vs. quantity per carton do not conform with CSA's recommendation. It was pointed out that Mi.' 'A mem ber action to standardize on a joint basis would violate antl-iru-t laws. Minutes of Tcc!.nic.il Research Comic tee lT_l March 6, 1970 It was agreed chat e3ch member company would submit Co J. Barnhart, by May 1st, a list of chose sizes of pipe insulacioo which did conform co CCA recommendations and chat Mr. Barnhart would collate these individual lists for use in replying co GSA's inquiry from e positive aspect. 3. Other Business e. MIL STD 769 C Naval Ship Engineering Center has requested NIMA's comments on proposed changes co the above application specification for machinery end piping. The changes proposed would eliminate the use of asbestos fiber finishing cements, asbestos felts and asbestos fiber pipe insulations on the basis of environ mental hazard studies. The Molded Section of the TtR Com mittee does not feel qualified co comment to NAVSEC on this subject and suggests chat such comment is mora properly a matter for consideration by Che Health and Safety Committee. b. MARAD Section 75 It was reported that Maritime Administration is reviewing Section 75. Any Individual company comments on this pub lication should be submitted to J. Bernhart with a copy co L. Mills, Government T&R for ecclon by May 1, 1970. c. MARAD It was reported chat all MARAD Publications era being reviewed with the Idea of consolidating and reducing publications. The *!IM.\ Government T?. Committee should he made aware of this and offer assistance where possible and also assure practicality Ir. the application and materials specif J cations which result from this consol Ida dun. There being no further business, the meeting wes adjourned. Respectfully submitted. JDM/rp /s/ J.D. Me Alliater Chairman, Molded Section