NA 031

DIN Standards Committee Firefighting and Fire Protection

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Projects of NA 031

Number: 72

DIN EN 15004-3 rev 2013-01-10 Fixed firefighting systems - Gas extinguishing systems - Part 3: Physical properties and system design of gas extinguishing systems for HCFC Blend A extinguishant (ISO 14520-6:2016, modified) More  Comment 
DIN EN 54-4 2009-08-04 Fire detection and fire alarm systems - Part 4: Power supply equipment; German and English version prEN 54-4:2015 More  Comment 

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