API RP 2210:2000 (R2015)

2 Scope 2.1 This publication covers flame arresters on vents for above-ground steel petroleum tanks operating essentially at atmospheric pressure as defined in API Standard 650, Welded Steel Tanks for Oil Storage. 2.2 Specifically excluded from the scope of this publication are all in-line flame arresters such as Flame Arresters in Piping Systems which are addressed in API Publication 2028 or flame arresters for marine vapor control systems (which have requirements regulated by the Federal Government, Title 33 CFR Part 154). Operation, Maintenance and Testing of Fire-box Flame Arresters is the subject of API Recommended Practice RP12N. API Publication 2028 discusses the influence of flame speed on flame arrester performance for deflagrations (subsonic flame speed) and detonations (flame propagation at speeds greater than the speed of sound). Tank vent flame arresters are not intended for protection against detonation.