Appendix B
Detectable Combustible Gases
Gas
Expected response at 20% LEL target gas
Methane
20% LEL
Propane
15% LEL to 45% LEL
Butane
15% LEL to 35% LEL
Pentane
15% LEL to 45% LEL
Hexane
8% LEL to 28% LEL
Methanol/Ethanol
6% LEL to 26% LEL
Hydrogen
No response
Acetylene
No response
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