China 'GB/T 42175-2022
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 42175-2022
Determination of copper, lead, zinc, cadmium and chromium in drilling mud and drilling cuttings for offshore oil exploration and development Microwave digestion-inductively coupled plasma mass spectrometry 海洋石油勘探开发钻井泥浆和钻屑中铜、铅、锌、镉、铬的测定 微波消解-电感耦合等离子体质谱法
Issued Date:2022/12/30
Implemented Date:2023/4/1
Issued by:
The Standardization Administration of the People's Republic of China