GB/T 223.40-1985

Methods for chemical analysis of iron, steel and alloy—The anion-exchange separation-sulphochlorophenol S photometric method for the determination of niobium content

NORMA vydaná dňa 18.7.1985

The information about the standard:

Designation standards: GB/T 223.40-1985
Note: NEPLATNÁ
Publication date standards: 18.7.1985
Country: Chinese technical standard
Kategória: Technické normy GB