GB/T 13747.4-2020
鋯及鋯合金化學分析方法 第4部分:鉻量的測定 二苯卡巴肼分光光度法和電感耦合等離子體原子發射光譜法
Methods for chemical analysis of zirconium and zirconium alloys-Part 4:Determination of chromium content—Diphenylcarbazide spectrophotometry and inductively coupled plasma atomic emission spectrometry
GBT13747.4-2020, GB13747.4-2020