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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:
Unless otherwise specified, packing shall adhere to the dimensional values provided herein.
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).
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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