scope:

This standard applies to the design, construction, operation, maintenance, and testing of a system for the suppression of a deflagration by introductions of a suppression medium.

This standard does not apply to devices or systems designed to protect against over-pressure due to phenomena other than internal explosions.

This standard only applies to systems designed to limit the pressure developed in the protected enclosure to a level that does not exceed the design strength of the enclosure.

This standard does not apply to systems for explosion isolation or suppression of detonations.

Purpose

This standard states testing and certification requirements for explosion suppression systems. An explosion suppression system is designed to detect an incipient deflagration and suppress it in order to prevent the full impact of the deflagration from developing. Typically these systems consist of four basic components: the detector(s), a control unit, suppressant storage container(s), and suppressant dispersers.

An explosion is detected in the incipient stage, either by a rise in pressure or the presence of flame within the protected enclosure. The control unit then actuates the suppressant dispersers to envelop and arrest the explosion.

Certification criteria may include, but are not limited to, performance requirements, marking requirements, examination of manufacturing facility(ies), audit of quality assurance procedures, and a follow-up program.