Standards GB - Chinese national standards - Page 5115

Chemical analysis methods and determination of physical performance of alumina—Part 7:Determination of titanium dioxide, chromium sesquioxide, cupric oxide,fluorine, chlorine, boron trioxide, phosphorus pentoxide, sulfate contents—Spectrophotometry method
Execute Date: december 2026

Standard published on 25.5.2026

Chemical analysis methods and determination of physical performance of alumina--Determination of chromium sesquioxide content--Diphenyl carbazide photometric method

Standard published on 5.2.2004

Chemical analysis methods and determination of physical performance of alumina--Determination of cupric oxide content--29-Dimethyl-110 phenanthroline photometric method

Standard published on 5.2.2004

Chemical reagent - Ammonium iron(II) sulfate hexahydrate

Standard published on 12.5.2011

Terminology and atlas for titanium and titanium alloys

Standard published on 5.10.2025

Titanium and titanium alloy castings

Standard published on 3.9.2014

Test method for resistivity of semiconductor wafers and sheet resistance of semiconductor films—Noncontact eddy-current gauge

Standard published on 6.8.2023

Test method for measuring resistivity of silicon wafer using spreading resistance probe

Standard published on 30.10.2009

Test method for thickness and total thickness variation of silicon slices

Standard published on 30.10.2009

Test methods for bow of silicon wafers

Standard published on 30.10.2009