Home / Standards / GB/T 209-2018 GB/T 209-2018 Active Sodium hydroxide for industrial use 工业用氢氧化钠 Standard Type GBT ICS 71.060.40 CCS G11 Status 现行 Issue Date 2018-12-28 Implementation 2019-11-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A