*GB/T 223.5-1997 Methods for chemical analysis of iron,steel and alloy The reduced molybdosilicate spectrophotometric method for the determination of acid-soluble silicon content
*GB/T 223.11-1991 Methods for chemical analysis of iron,steel and alloy The ammonium persulfate oxidation volumetric method for the determination of chromium 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 copper 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 223.23-1994 Methods for chemical analysis of iron, steel and alloy.The dimethylglyoxime spectrophotometric method for the determination of nickel content
*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 223.26-1989 Methods for chemical analysis of iron, steel and alloy--The thiocyanate direct photometric method for the determination of molybdenum content
*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 223.29-1984 Methods for chemical analysis of iron, steel and alloy--The xylenol orange photometric method for determination of lead content after carrier precipitation
*GB/T 223.31-1994 Methods for chemical analysis of iron, steel and alloy The distillation-molybdenum blue spectrophotometric method for the determination of arsenic content
*GB/T 223.47-1994 Methode for chemical analysis of iron,steel and alloy The carrier precipitation-molybdenum blue potometric method for the determination of antimony content
*GB/T 223.50-1994 Methods for chemical analysis of iron, steel and alloy The phenylfuorone-CTMAB direct photometric method for the determination of tin content
*GB/T 223.53-1987 Methods for chemical analysis of iron, steel and alloy. The flame atomic absorption spectrophotometric method for the determination of copper content
*GB/T 223.54-1987 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrophotometric method for the determination of nickel content
*GB/T 223.58-1987 Methods for chemical analysis of iron, steel and alloy - The sodium arsenite-sodium nitrite titrimetric method for the determination of manganese content
*GB/T 223.59-1987 Methods for chemical analysis of iron, steel and alloy--The reduced molybdoantimonyl phosphoric acid photometric method for the determination of phosphorus content
*GB/T 223.60-1997 Methods for chemical analysis of iron,steel and alloy The perchloric acid dehydration gravimetric method for the determination of silicon content
*GB/T 223.63-1988 Methods for chemical analysis of iron, steel and alloy - The sodium (potassium) periodate photometric method for the determination of manganese content
*GB/T 223.64-1988 Methods for chemical analysis of iron, steel and alloy; The flame atomic absorption spectrometric method for the determination of manganese content
*GB/T 223.67-1989 Methods for chemical analysis of iron, steel and alloy--The reducing distillation-methylene blue photometric method for the determination of sulfur content
*GB/T 223.71-1997 Methods for chemical analysis of iron,steel and alloy The gravimetric method after combustion in the pipe furnace for the determination of carbon content
*GB/T 223.72-1991 Methods for chemical analysis of iron, steel and alloy The alumina chromatographic separation-barium sulfate gravimetric method for the determination of sulphur content
*GB/T 223.74-1997 Methods for chemical analysis of iron,steel and alloy The combustion gravimetric/gas-volumetric method for the determination of combined carbon content
*GB/T 223.77-1994 Methods for chemical analysis of iron, steel and alloy The flame atomic absorption spectrometric method for the determination of calcium content
*GB/T 230-1991 Metallic materials－Rockwell hardness test
*GB/T 231-1984 Metallic materials--Brinell hardness test
*GB/T 2101-1989 General requirements of acceptance,packaging,marking,and certification for section steel
*GB/T 4162-1991 Forged and rolled steel bars--Method for ultrasonic examination
*GB/T 15711-1995 Steel products－Method for ecth test of tower sample
*GB/T 18254-2000 High-carbon chromium bearing steel

*TB/T 3010-2001
*TB/T 3010-2001
*TB/T 3010-2001
*TB/T 3010-2001
*TB/T 3010-2001