Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 1Determination of carbon and sulfur contents—High frequency-infrared absorption method
NORM herausgegeben am 30.12.2022
Designation standards: GB/T 12690.1-2022
Publication date standards: 30.12.2022
Country: Chinese technical standard
Kategorie: Technische Normen GB