Home / Standards / GB/T 1816-2019 GB/T 1816-2019 Active Test for neutrality of benzole products 苯类产品中性试验 Standard Type GBT ICS 71.080 CCS G18 Status 现行 Issue Date 2019-06-04 Implementation 2020-01-01 Responsible Dept 国家标准委 Drafting Unit N/A