This specification covers the general requirements and testing procedures for wick (Type I), rope (Type II), and braided (Type III) fiberglass packing used for boiler, furnace, and other high-temperature equipment seals. The material used for construction shall be a continuous, high-density-type ETG fiberglass material. Asbestos and other asbestos-containing components are disallowed. Each type of packing shall be manufactured according to the manufacturer's design, as follows: Type I shall be composed of twisted plied strands made into braids; Type II shall be laid up into the general form of a wick; and Type III shall be a loosely twisted rope. Unless otherwise specified, packing shall adhere to the dimensional values provided herein.
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1.1 This specification covers the general requirements and tests for braided, rope, and wick fiberglass packing used for boiler, furnace, and other high-temperature equipment seals for service temperatures up to 1000°F (538°C).
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D578 Specification for Glass Fiber Strands
D3951 Practice for Commercial Packaging
D4268 Test Methods for Testing Fiber Ropes
packing; fiberglass; braided; rope; wick fiberglass; high temperature equipment seals; boiler; furnace;
ICS Number Code 27.060.01 (Burners and boilers in general)
ASTM International is a member of CrossRef.
Citing ASTM Standards
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