天然气含H2S多少的分类Classification of how much H2S natural gas contains（）

A、无硫或微含硫天然气 H2S和CO2含量符合管输要求，不需要净化The content of H2S and CO2 in sulfur-free or slightly sulfur-containing natural gas meets the requirements of pipeline transportation and does not require purification；

B、低含硫天然气 H2S含量约为0.0001～0.5％（体积）H2S content of low-sulfur natural gas is about 0.0001 ~ 0.5% (volume)；

C、中含硫天然气 H2S含量约为1～1.5％（体 积），CO2含量约为6～8％（体积）H2S content of natural gas containing sulfur is about 1-1.5% (volume), and CO2 content is about 6-8% (volume).；

D、高含硫天然气 H2S含量一般为4～8％（体积）high sulfur natural gas：H2S content of high-sulfur natural gas is generally 4-8% (volume)