Methods for chemical analysis of zirconium and zirconium alloys—Part 25Determination of niobium content—2-(5-bromo-2-pyridylazo)-5-diethylam inophenol spectrophotometry and inductively coupled plasma atomic emission spectrometry
NORMA vydaná dňa 29.9.2017
Designation standards: GB/T 13747.25-2017
Publication date standards: 29.9.2017
Country: Chinese technical standard
Kategória: Technické normy GB