Fire extinguishing installations and equipment on premises - Specification for powder systems Ingestion-build-189776 Neutral red uptake (NRU) cytotoxicity

Neutral red uptake (NRU) cytotoxicity test

The requirements of this standard cannot cover all details of design and construction because of the variety of sizes and configurations that may be employed

a more accurate set pressure can be obtained

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Fire extinguishing installations and equipment on premises - Specification for powder systems Ingestion-build-189776 Neutral red uptake (NRU) cytotoxicityBS 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