Document da3JYYNJ7XVpMjD80rgjJkQQb

fvm ltr B (11-43 matt JEANNETTE, PA. , MATERIAL SPECIFICATION No. 379 Title: Asbestos Yam - 'Waxed Du June lk, 1963 SI1..I 1 No. SHEETS 2 . I. Scope: This specification covers a fire retardant product.known . as single asbestos yarn which is made from rubbed asbestos roving. The finished yarn shall have a waxed surface. . II. Asbestos Content: . Min. - 8o Max. - 8U$ . .. '. ' . .. in. Service Temperature: The material supplied to this specification shall be capable of withstanding a maximum temperature of h50*F. ; iv. Grade and Sizes: The material shall be ASTMD-299,underwriters grade. Sites available shall, be between 5 and 18 "cut" inclusive. . v. . sta^a-rd Specification: All provisions and requirements of ASTM D-299# latest revision, shall apply. Appror<i^/^.----- Apprnr ----1 Appro-r ET-00366 SC-ETM-3142 -6Dl Fm 1a 5 (11-43 'Elliott JEANNETTE, PA. MATERIAL SPECIFICATION No. 379 ou June 14, 1963 Shoot 2 Ho. SHEETS 2 k Title; Asbestos Yarn - Waxed' Note: T^is sheet not to be sent to suppliers. Approved Source: Johns KamrUle Corporation. ... . Hote that size (cut) miist be specified on the purchase order. . At pre3ent iour. only stock size -la-8 cut, but other sizes nay be ; required for fixture requirements. . . -- . A./ . W- . . i I *N Ararerod Appnrrod. ET-00367 602