Home / Standards / GB/T 40998-2021 GB/T 40998-2021 Active Determination of hydroxypropyl content in modified starch—Spectrophotometric method 变性淀粉中羟丙基含量的测定 分光光度法 Standard Type GBT ICS 67.180.20 CCS X11 Status 现行 Issue Date 2021-11-26 Implementation 2022-06-01 Responsible Dept 中国商业联合会 Drafting Unit N/A