C Camilla1 New member Nov 30, 2010 #1 At what concentration of Acetylene dictates a group A atmosphere? I have found documentation that specifies concentrations of Hydrogen to require group B (30%). Thanks,
At what concentration of Acetylene dictates a group A atmosphere? I have found documentation that specifies concentrations of Hydrogen to require group B (30%). Thanks,
weressl Esteemed Member Location Texas by the Gulf, geat crab, great shrimp Nov 30, 2010 #2 Camilla1 said: At what concentration of Acetylene dictates a group A atmosphere? I have found documentation that specifies concentrations of Hydrogen to require group B (30%). Thanks, Click to expand... LEL 2.5% and UFL 99.9%. See NFPA 497. In another word wherever you have acetylene it is Group A.
Camilla1 said: At what concentration of Acetylene dictates a group A atmosphere? I have found documentation that specifies concentrations of Hydrogen to require group B (30%). Thanks, Click to expand... LEL 2.5% and UFL 99.9%. See NFPA 497. In another word wherever you have acetylene it is Group A.
