Home / Standards / GB/T 34674-2017 GB/T 34674-2017 Active Technical guideline for methane preparation from coke oven gas 焦炉气制甲烷技术导则 Standard Type GBT ICS 71.100.20 CCS G86 Status 现行 Issue Date 2017-11-01 Implementation 2018-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A