GB 2141-1980

Determination of selenium content in tellurium--2, 3-diaminonaphthalene absorption photometric method

NORMA vydaná dňa 1.1.1980

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The information about the standard:

Designation standards: GB 2141-1980
Note: NEPLATNÁ
Publication date standards: 1.1.1980
Country: Chinese technical standard
Kategória: Technické normy GB