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1.1 This specification provides the minimum requirements for design, construction, performance, and testing of detonation flame arresters intended to protect against deflagrations, overdriven (unstable) detonations, stable detonations, and stabilized burning.
1.2 This specification is intended for detonation flame arresters installed in vapor control systems at Marine Facilities subject to the requirements in 33 CFR, Part 154, Subpart P — Marine Vapor Control Systems.
Note 1: In 1990, by permission from ASTM International, an earlier draft of this specification was incorporated and printed in 33 CFR, Part 154, Appendix A.
1.3 This specification is intended for detonation flame arresters protecting systems containing gases or vapors of liquids with flash points 140°F [60°C] (closed cup) or less. The tests in this specification are intended to qualify detonation flame arresters for all in-line applications, provided the operating pressure is equal to or less than the maximum operating pressure stated in the manufacturer’s certification, and the diameter of the piping system in which the detonation flame arrester is to be installed is equal to or less than the piping diameter used in the testing.
1.4 This specification is limited to detonation flame arresters operating at temperatures no greater than 140°F [60°C], unless the detonation flame arresters are tested at the higher operating temperatures.
Note 2: Refer to UL 525 for additional requirements that may be applicable.
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.6 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.
1.7 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A395/A395M Specification for Ferritic Ductile Iron Pressure-Retaining Castings for Use at Elevated Temperatures
F722 Specification for Welded Joints for Shipboard Piping Systems
F1155 Practice for Selection and Application of Piping System Materials
Code of Federal Regulations (CFR)Title 33, Part 154
UL StandardsUL 525 Standard for Flame Arresters
ASME StandardsASME B16.5 Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard
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ASTM F3386 / F3386M-21, Standard Specification for Detonation Flame Arresters, ASTM International, West Conshohocken, PA, 2021, www.astm.orgBack to Top