NFPA 664 木材加工和木工设备的防火防爆
日期:2012-02-08 16:39
n systems and deflagration venting on metal ducts located both indoors and outdoors
Reduction of the concentration criterion for allowing ducts to handle dusts without protection from 75 percent of the minimum explosible concentration (MEC) down to 25 percent of MEC to correlate with NFPA 69 Standard on Explosion Prevention Systems
Revised provisions for dust collectors with deflagration hazards to be equipped with a deflagration suppressions system
Revised criteria for deflagration relief ve
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09/12 01:35