Document Zn4EdZEqEXb55kZEkrojRzGyZ

MATERIAL SPECIFICATION No. 377 _ Data June l!+, 1963 "' Shaot 1 No. SHEETS 2 Title: Asbestos Roving- - Thread Reinforced I. Scope: This specification covers a fire resistant product made from carded asbestos^fibre and cotton, which is mechanically rubbed into a uniform roving around a core of cotton yarn. II. Asbestos Contents. Min. - 80^. Marc. - 8h< III. Service Temperature: Material supplied to this specification shall be capable of '<3:thstanding a maximum temperature of 1+50 F. Grade and Sice n Mate rial supplied shall be AST!! D-375> underwriters' grade. Available sicel-range shall be between 3 and lit "cut" inclusive. V. Standard Specification: Material supplied to this specification shall meet the requirements of AST!'1. D-37c,'> latest revision. Approved Aoprovad 2 Aopiowd--** ET-00362 6BL