*GB/T 223.1-1981 Determination of carbon content in iron,steel and alloy
*GB/T 223.2-1981 Determination of sulphur content in iron,steel and alloy
*GB/T 223.4-1988 Methods for chemical analysis of iron, steel and alloy--The volumetric method for determination of manganese content by ammonium nitrate oxidation
*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 223.19-1989 Methods for chemical analysis of iron, steel and alloy. The neocuproine-chloroform extraction photometric method for the determination of copper content
*GB/T 223.24-1994 Methods for chemical analysis of iron, steel and alloy.The extraction seperation-The dimethylglyoxime spectrophotometric method for the determination of nickel content
*GB/T 223.26-1989 Methods for chemical analysis of iron, steel and alloy--The thiocyanate direct photometric method for the determination of molybdenum content
*GB/T 223.40-1985 Methods for chemical analysis of iron,steel and alloy; The anion-exchange separation-sulphochlorophenol S photometric method for the determination of niobium content
*GB/T 228-1987
*GB/T 229-1994 Metallic materials-Charpy notch impact test
*GB/T 4334.3-2000 Method of 65 percent nitric acid test for stainless steels
*GB/T 4334.5-2000 Method of copper sulfate-sulfuric acid test for stainless steels
*GB/T 6060.1-1997 Roughness comparison specimens Cast surfaces
*GB/T 6397-1986 Metallic materials--Test pieces for tensile testing
*GB/T 6414-1999 Castings--System of dimensional tolerances and machining allowances
*GB/T 11351-1989 Mass tolerances for castings

*GB/T 2100-2002 Corrosion-resistant steel castings for general applications