Septic system methane

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dnem

Senior Member
Location
Ohio
I'm looking for anything about methane in Article 500
I don't see methane anywhere in 500.6
Does methane have a "igniting current ratio" ? [500.6(A)(3)or(4)]
 
Article 500 doesn't give specific properties of individual flammable or combustible materials.

See NFPA 497, specifically table 4.4.2 for the info you want.
 
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