GB/T 223.68-1997
Methods for chemical analysis of iron, steel and alloy. The potassium iodate titration method after combustion in the pipe furnace for the determination of sulfur content (English Version)
- Standard No.
- GB/T 223.68-1997
- Language
- Chinese, Available in English version
- Release Date
- 1997
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 223.68-1997
- Replace
- GB/T 223.68-1989
- Scope
- This standard specifies the determination of sulfur content by potassium iodate titration after combustion in a tube furnace. This standard applies to the determination of 0.0030% (m/m) to 0.20% (m/m) sulfur content in iron, steel, superalloys and precision alloys.
GB/T 223.68-1997 history
- 1997 GB/T 223.68-1997 Methods for chemical analysis of iron, steel and alloy. The potassium iodate titration method after combustion in the pipe furnace for the determination of sulfur content
- 0000 GB/T 223.68-1989
GB/T 223.68-1997 -All Parts
GB/T 223.1-1981 Determination of carbon content in iron,steel and alloy
GB/T 223.10-2000 Methods for chemical analysis of iron,steel and alloy The cupferron separation-chrome azurol S photometric method for the determination of aluminium content
GB/T 223.11-2008 Determination of chromium content in iron, steel and alloy by visual titration or potentiometric titration
GB/T 223.12-1991 Methods for chemical analysis of iron,steel and alloy--The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content
GB/T 223.13-2000 Methods for chemical analysis of iron,steel and alloy The ammonium ferrous sulfate titration method for the determination of vanadium content
GB/T 223.14-2000 Methods for chemical analysis of iron,steel and alloy The N-benzoy-N-phenylhydroxylamine extraction photometric method for the determination of vanadium content
GB/T 223.15-1982 Chemical analysis of iron,steel and alloy--The determination of titanium by gravimetric method
GB/T 223.16-1991 Methods for chemical analysis of iron,steel and alloy--The chromotropic acid photometric method for the determination of titanium content
GB/T 223.17-1989 Methods for chemical analysis of iron,steel and alloy--The diantipyrylmethane photometric method for the determination of titanium content
GB/T 223.18-1994 Methods for chemical analysis of iron steel and alloy.The sodium thiosulfate separation iodimetric method for the determination of cupper content
GB/T 223.19-1989 Methods for chemical analysis of iron,steel and alloy--The neocuproine-chloroform extraction photometric method for the determination of copper content
GB/T 223.2-1981 Determination of sulfur content in steel and alloy
GB/T 223.20-1994 Methods for chemical analysis of iron steel and alloy.The Potentiometric titration method for the determination of cobalt content
GB/T 223.21-1994 Methods for chemical analysis of iron steel and alloy.The 5-CL-PADAB spectrophotometric method for the determination of cobalt content
GB/T 223.22-1994 Methods for chemical analysis of iron ,steel and alloy.The nitroso-R-salt spectrophotometric method for the determination of cobalt content
GB/T 223.23-2008 Iron,,steel and alloy.Determination of nickel content.The dimethylglyoxime spectrophotometric method
GB/T 223.24-1994 Methods for chemical analysis of iron, steel and alloy.The extraction seperation--The dimethylglyoxime spectrophotometric method for the determination of nickel content
GB/T 223.25-1994 Methods for chemical analysis of iron, steel and alloy.The dimethylglyoxime gravimetric method for the determination of nickel content
GB/T 223.26-2008 Iron,steel and alloy.Determination of molybdenum content.The thiocyanate spectrophotometric method
GB/T 223.27-1994 Methods for chemical analysis of iron, steel and alloy.The thiocyanate-butyl acetate extraction spectrophotometric method for the determination of molybdenum content
GB/T 223.28-1989 Methods for chemical analysis of iron,steel and alloy--The α-benzoinoxime gravimetric method for the determination of molybdenum content
GB/T 223.29-2008 Iron,steel and alloy.Determination of lead content.Carrier precipitation-xylenol orange spectrophotometric method
GB/T 223.3-1988 Methods for chemical analysis of iron, steel and alloy--The diantipyrylmethane phosphomolybdate gravimetric method for the determination of phosphorus content
GB/T 223.30-1994 Methods for chemical analysis of iron,steel and alloy. The arsenazo Ⅲ spectrophotometric method for the determination of zirconium content after separation by p-bromomandelic acid
GB/T 223.31-2008 Iron,steel and alloy.Determination of arsenic content.Distillation-molybdenum blue spectrophotometric method
GB/T 223.32-1994 Methods for chemical analysis of iron,steel and alloy. The hypophosphite reduction-iodimetric method for the determination of arsenic content
GB/T 223.33-1994 Methods for chemical analysis of iron,steel and alloy. The chlorophosphonazo mA photometric method for the determination of cerium content after extraction separation
GB/T 223.34-2000 Methods for chemical analysis of iron,steel and alloy-The determination of hydrochloric acid-insoluble content of iron powders
GB/T 223.35-1985 Methods for chemical analysis of iron,steel and alloy--The pulse heating inert gas fusion-coulometric titration method for the determination of oxygen content
GB/T 223.36-1994 Methods for chemical analysis of iron, steel and alloy. The neutral titration method for the determinaion of nitrogen content after distillation separation
GB/T 223.37-2020 Iron, steel and alloy—Determination of nitrogen content—Indophenol blue spectrophotometric method after distillation separation
GB/T 223.38-1985 Methods for chemical analysis of iron,steel and alloy--The anion-exchange separation-gravimetric method for the determination of niobium content
GB/T 223.39-1994 Methods for chemical analysis iron,steel and alloy. The sulphochlorophenol S photometric method for the determination of niobium content
GB/T 223.4-2008 Alloyed steel.Determination of manganese content.Potentiometric or visual titration method
GB/T 223.40-2007 Iron, steel and alloy Determination of niobium content by the sulphochlorophenol S spectrophotometric method
GB/T 223.41-1985 Methods for chemical analysis of iron,steel and alloy--The anion-exchange separation-pyrogallol photometric method for the determination of tantalum content
GB/T 223.42-1985 Methods for chemical analysis of iron,steel and alloy--The anion-exchange separation-bromopyrogallol red photometric method for the determination of tantalum content
GB/T 223.43-2008 Iron,steel and alloy.Determination of tungsten content.Gravimetric method and spectrophotometric method
GB/T 223.45-1994 Methods for chemical analysis of iron,steel and alloy. The cupral Separation-xylidyl blue Ⅱphotometric method for the determination of magnesium content
GB/T 223.46-1989 Methods for chemical analysis of iron,steel and alloy--The flame atomic absorption spectrometric method for the determination of magnesium content