GB/T 17505 Steel and steel products.General technical delivery requirements
GB/T 1838 Test method of tin coating mass for electrolytic tinplate
GB/T 20066 Steel and iron.Sampling and preparation of samples for the determination of chemical composition
GB/T 20123 Steel and iron - Determination of total carbon and sulfur content Infrared absorption method after combustion in an induction furnace (routine method)
GB/T 20126 Unalloyed Steel - Determination of low carbon content - Part 2: Infrared absorption method after combustion in an induction furnace (With preheating)
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 223.11 Determination of chromium content in iron, steel and alloy by visual titration or potentiometric titration
GB/T 223.18 Methods for chemical analysis of iron steel and alloy.The sodium thiosulfate separation iodimetric method for the determination of cupper content
GB/T 223.23 Iron,,steel and alloy.Determination of nickel content.The dimethylglyoxime spectrophotometric method
GB/T 223.26 Iron,steel and alloy.Determination of molybdenum content.The thiocyanate spectrophotometric method
GB/T 223.29 Iron,steel and alloy.Determination of lead content.Carrier precipitation-xylenol orange spectrophotometric method
GB/T 223.4 Alloyed steel.Determination of manganese content.Potentiometric or visual titration method
GB/T 223.5 Steel and iron.Determination of acid-soluble silicon and total silicon content.Reduced molybdosilicate spectrophotometric method
GB/T 223.57 Methods for chemical analysis of iron,steel and alloy--The extraction-absorption catalytic polarographic method for the determination of cadmium content
GB/T 223.59 Iron,steel and alloy.Determination of phosphorus content.Bismuth phosphomolybdate blue spectrophotometic method and antimony phosphomolybdate blue spectruophotometric method
GB/T 223.60 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 Iron, steel and alloy—Determination of manganese content—Sodium (potassium) periodate spectrophotometric method*, 2022-07-11 Update
GB/T 223.64 Iron,steel and alloy.Determination of manganese content.Flame atomic absorption spectrometric method
GB/T 223.9 Iron,steel and alloy.Determination of aluminium content.Chrome azurol S photometric method
GB/T 22316 Test methods of corrosion resistance for electrolytic tinplate
GB/T 228.1 Metallic materials—Tensile testing—Part 1: Method of test at room temperature*, 2021-12-31 Update
GB/T 28290 Methods for determination of surface chromium on electrolytic tinplate
GB/T 4336 Determination of multi-element content in carbon steel and medium and low alloy steel Spark discharge atomic emission spectrometry (conventional method) Amendment No. 1
GB/T 708 Dimension,shape,weight and tolerance for coldrolled steel strip and sheet*, 2019-03-25 Update