Document KRdEJ3xo8pdV1emmjqvXBdLDx

MINUTES of the TECHNICAL li RESEARCH COMMITTEE MEETING NATIONAL INSULATION MANUFACTURERS ASSOCIATION New York* N. Y. March 31, 1966 Molded Section The meeting we a called to order at 9:15 A* M. with the following in attendance: H. P. Hoopes, Chairman J. McAllister A. Kevlin R. McKee G. Pocius W, Schwingen B. Tov/cr D, Wingerter C. V.' right J. M, Barnhart Fibrebpard Paper Products Co. Baldwin*Ehret-Hill, Inc. Bwens-Corning Fiberglas Corp. Baldwin-Ehret-Hill, Inc. Johns-Manville Sales Corp. The Ruberoid Company Johns*Manville Sales Corp. Johns-Manville Sales Corp. Johns-Manville Sales Corp. NIMA MILITARY SPECIFICATIONS MIL-1-2781 The following changes were agreed to: Par. 1. 2 Classification - Change to read as follows: Grade I -- Temperature up to 600F, compounded Grade Q Temperatures up to 1000F Glass a - Fibrous - Class b Compounded Grade QX - Temperatures up to 1200F Class c - Compounded Type I * Light Density Type XI Heavy Density Class d Fibrous SsMe'lU^rLyMlkdT.IV.UllUlrements^.. 2 Table 111 - Physical Requirements Change "k" values as follows: Mean Temp 200F 300F 400F Class c 0.41 0.46 0. 51 Grade II Class d 0.41 0.46 0.51 Since Pittsburgh Corning is not a member of NZMA, Bud Miller of PC will be contacted to ascortain whether they would be agreeable to the suggested ,fk" value change for their product. Change Weight Loss by Tembling as follows: Grade II - Claes d and Grade HI - Class e. Type I to 30, 50. MIL-I-2819 Par. 1, 2 Classification - Change to read as follows; Grade 2 Temperatures up to 600F Grade II - Temperatures up to 1200F Grade HI - Temperatures up to 1500F Grade IV - Temperatures up to 2000F FEDERAL SPECIFICATION ISI-I-523 It was reported that Bob Lyons of GSA had indicated that this specification would not contain "expanded silica". The following changes were agreed to: Par. 3. 4. 2. 1 - Delete the flame spread classification for canvas jackets. Par. 3.4.3 - Use wordage used in specification dated September 23. 1964. Change "vapor barrier* to "moisture barrier" Par. 3.4.4 - Change to read "...not more than 1 perm through the laminate. #3# The thickness of the aluminum foil was thought to be too thin by some members. No suggested tidclmess was agreed to at this time. This subject will be pursued further. FEDERAL SPECIFICATION HH-B-00I00 Comments relative to this specification are to be sent to the NIVA office. STRESS CORROSION OF AUSTENITIC STAINLESS STEEL It was agreed that NIMA should establish a position relative to this subject. Each company is to write to NIMA relative to their company's position pertaining to this problem prior to June 1( I960. NIMA will summarise and circulate to the Committee defining the significance of the problem as it relates to insulation. DEFENSE SUPPLY AGENCY LETTER & was agrees that comments on the letter dated March 2d, 1966, would be made thru NIMA. Each company is to send their comments to the NIMA office prior to May 15, 1966. ADJOURNMXNT There being no further business the meeting was adjourned. Respectfully submitted J. M. Barnhart