GB/T 12690.12-2003

Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides Determination of thorium content Arsenazo III spectrophotometric method and Inductively coupled plasma mass spectrum method

NORMA vydána dne 18.11.2003

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The information about the standard:

Designation standards: GB/T 12690.12-2003
Note: NEPLATNÁ
Publication date standards: 18.11.2003
Country: Chinese technical standard
Kategorie: Technické normy GB