Standards GB - Chinese national standards - Page 222

The methods for chemical analysis of zinc and zinc alloys--The determination of silicon content--The molybdenum blue spectrophotometric method

Standard published on 30.4.2004

The methods for chemical analysis of zinc and zinc alloys--The determination of antimony content--The atomic fluorescence spectrometer and the flame atomic absorption spectrometric method

Standard published on 30.4.2004

Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 1Determination of carbon and sulfur contents—High frequency-infrared absorption method

Standard published on 30.12.2022

Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of phosphorus content by molybdenum blue spectrophotometric method

Standard published on 18.11.2003

Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides--Determination of magnesium content--Flame atomic absorptionspectrometric method

Standard published on 18.11.2003

Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides— Part 11: Determination of magnesium content—Flame atomic absorption spectrometric method
Execute Date: february 2026

Standard published on 1.8.2025

Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 12: Determination of thorium and uranium contents—Inductively coupled plasma mass spectrum method

Standard published on 25.4.2024

Chemical analysis methods for non-rareearth impurities of rare earth metals and their oxides--Determination of molybdenum and tungsten content--Induct-ively coupled plasma atomic emission spectrographic method and inductively coupled plasma mass spectrum

Standard published on 18.11.2003

Chemical analysis methods of non-rare earth impurities in rare earth metals and their oxides Determination of titanium in rare earth metals

Standard published on 13.4.2006

Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxidesPart 15: Determination of calcium content

Standard published on 13.7.2018