组分名称及浓度范围                                                    平衡气

Components name and concentration range                         Balance gas

CH₄  0.5-3.0%(10%LEL-60%LEL)

Air

C₃H₈ 0.22-1.32%(10% LEL-60%LEL)

Air

C₂H₄ 0.27-1.62%(10% LEL-60%LEL)

Air

i-C₄H₁₀ 0.19-1.14%(10% LEL-60%LEL)

Air

H₂ 0.2-2.4%(10% LEL-60%LEL)

Air

CO  100-500*10^-6

Air

H₂S 10-1000*10^-6

N₂