China 'GB/T 40950-2021
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 40950-2021
Determination of alkyl(C12~C22) trimethyl ammonium salt in cosmetics—High performance liquid chromatography tandem mass spectrometry 化妆品中烷基(C12~C22)三甲基铵盐的测定 高效液相色谱串联质谱法
Issued Date:2021/11/26
Implemented Date:2022/6/1
Issued by:
The Standardization Administration of the People's Republic of China