
Chemical analysis methods of non-rare earth impurities in rare earth metals and their oxides—Part 13: Determination of molybdenum and tungsten content
NORMA vydána dne 27.2.2026
Designation standards: GB/T 12690.13-2026
Note: K dispozici od: září 2026
Publication date standards: 27.2.2026
Country: Chinese technical standard
Kategorie: Technické normy GB