Fire extinguishing installations and equipment on premises - Specification for powder systems Ingestion-build-189776 Back pressure supports

Back pressure supports

a more accurate set pressure can be obtained

Test medium

Neutral red uptake (NRU) cytotoxicity test

Procurers of constructed assets

Fire extinguishing installations and equipment on premises - Specification for powder systems Ingestion-build-189776 Back pressure supportsBS 5306 7: 1988 specifies requirements and gives recommendations for powder fire extinguishing systems which discharge powder complying with BS 6535 3 from a container, or centrally grouped containers, through pipework or a hose to a nozzle or nozzles within the hazard area. It covers both stored pressure and gas container systems, with maximum working pressures not exceeding 25 bar at 20 C. This standard does not deal with powder portable fire