46 C.F.R. § 56.25-15 Gaskets (reproduces 108.4).
Title 46 - Shipping
(a) Gaskets shall be made of materials which are not injuriously affected by the fluid or by temperature. (b) Only metallic and suitable asbestos-free nonmetallic gaskets may be used on flat or raised face flanges if the expected normal operating pressure exceeds 720 pounds per square inch or the operating temperature exceeds 750 °F. (c) The use of metal and nonmetallic gaskets is not limited as to pressure provided the gasket materials are suitable for the maximum fluid temperatures. [CGFR 68–82, 33 FR 18843, Dec. 18, 1968, as amended by CGD 86–035, 54 FR 36316, Sept. 1, 1989]
Title 46: Shipping
PART 56—PIPING SYSTEMS AND APPURTENANCES
Subpart 56.25—Pipe Flanges, Blanks, Flange Facings, Gaskets, and Bolting
§ 56.25-15 Gaskets (reproduces 108.4).
