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2,2-Dichloro-1,1,1-trifluoroethane or HCFC-123 is considered as an alternative to CFC-11 in low pressure refrigeration and HVAC systems, and should not be used in foam blowing processes or solvent applications.
In 2024, the Grenfell Tower Inquiry's final Phase 2 report noted that the NFPA's prescriptive approach to drafting its standards "reflects a conservative approach to fire safety which is embedded in North American culture" and the NFPA standards "allow little scope for independent design choices". [7]
HFC-227ea is categorized as a Clean Agent and is governed by NFPA 2001 - Standard for Clean Agent Fire Extinguishing Systems. Effective fire suppression requires introducing a concentration of the HFC-227ea agent between 6.25% and 9% depending on the hazard being suppressed. Its NOAEL for cardiac sensitization is 9%.
International Chemical Safety Card 0837; NIOSH Pocket Guide to Chemical Hazards. "#0634". National Institute for Occupational Safety and Health (NIOSH). "Final Report on Fire Extinguishing Agents for the Period September 1, 1947, to June 30, 1950", Contract No. W44-099eng-507, Purdue Research Foundation, Lafayette, Indiana, July 1950.
Automatic control means are any form of suppression that requires no human intervention these can include a fire sprinkler system, a gaseous clean agent, or automatic foam suppression system. Most automatic suppression systems would be found in large commercial kitchens or other high-risk areas. Sprinkler head.
NFPA may refer to: National Fire Protection Association. NFPA 704, National Fire Protection Association Fire Diamond; National Food Processors Association; National Fluid Power Association; Non-Fossil Purchasing Agency; Non-functioning pituitary adenoma