GB/T 21932-2008
Nickel and ferronickel - Determination of sulphur content - Barium sulfate gravimctric method after alumina chromatographic separation
GB/T 6730.16-2016
Iron ores—Determination of sulfur content—Barium sulfate gravimetric method
GB/T 21931.2-2008
Nickel, ferronickel and nickel alloys - Determination of sulfur content - Infrared absorption method after induction furnace combustion
GB/T 32784-2016
Pig iron contenting nickel—Determination of chromium content—Ammonium per sulfate-ammonium ferrous sulfate titration method
GB/T 43012-2023
Pulp—Determination of cellulose nanocrystal sulfur and sulfate half-ester content
GB/T 42794-2023
Ferronickel—Determination of carbon, sulfur, silicon, phosphorus, nickel, cobalt, chromium and copper contents—Spark atomic emission spectrometry
YB/T 5040-2012
Molybdenum oxide-Determination of sulfur content-Gravimetric method of barium sulfate
HB/Z 5088.1-1999
GB/T 4333.7-2019
Ferrosilicon—Determination of sulfur content—Infrared absorption method and chromatographic separation-barium sulfate gravimetric method
YB/T 5332-2009
HG/T 2957.4-2004
GB/T 2463-2008
Pyrites and concentrate - Determination of total iron content - Cerium sulfate volumetric and potassium dichromate volumetric methods
SN/T 4376-2015
HB/Z 5089.3-2004
Methods for analysis of plating black nickel solutions-Part 3:Continual determination of nickel sulfate and zinc sulfate content by EDTA compleximetric method
YS/T 252.4-2007
Methods for chemical analysis of nickel matte—Determination of copper content—Sodium thiosulphate titrimetric method
HB/Z 5089.2-2004
Methods for analysis of plating black nickel solutions-Part 2:Continual determination of nickel sulfate and zinc sulfate content by magnesium sulfate back titrimetric EDTA volumetric method
HB/Z 5089.1-2004
Methods for analysis of plating black nickel solutions-Part 1:Determination of ammonium nickel sulfate content by ion selective electrode method
GB/T 15057.8-1994
Limestonefor chemical industry--Determination of sulfur content--Gravimetric and combustion-iodate titrimetric methods
HB/Z 5088.2-1999
GB/T 11198.9-1989
Sulphuric acid for industrial use--Determination of mercury content--Dithizone photometric method