
Silicate rocks—Determination of cobalt content—4-[(5-Chtoro-2-pyridyl)-azo]-1,3-diamino benzene photometric method
NORMA vydána dne 19.6.1993
Designation standards: GB/T 14506.26-1993
Note: NEPLATNÁ
Publication date standards: 19.6.1993
Country: Chinese technical standard
Kategorie: Technické normy GB