GB/T 38941-2020 Superalloy rods for powders atomized by plasma rotating electrode process

HB/Z 131 GB/T 223.5-1997 Methods for chemical analysis of iron,steel and alloy—The reduced molybdosilicate spectro photometric method for the determination of acid-soluble silicon content GB/T 223.5-2008 Steel and iron—Determination of acid-soluble silicon and total silicon content—Reduced molybdosilicate spectrophotometric method GB/T 223.8-2000 Methods for chemical analysis of iron,steel and alloy The sodium fluoride separation—EDTA titration method for the determination of aluminium 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 223.11-2008 Iron,steel and alloy—Determination of chromium content—Visual titration or potentiometric titration method 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 223.20-1994 Methods for chemical analysis of iron,steel and alloy The potentiometric titration method for the determination of cobalt 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 223.28-1989 Methods for chemical analysis of iron, steel and alloy The α-benzoinoxime gravimetric method for the determination of molybdenum content GB/T 223.30-1994 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 223.33-1994 Methods for chemical analysis of iron, steel and alloy The chlorophosphonago mA photometric method for the determination of cerium content after extraction 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 223.41-1985 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-brom opyrogallol red photometric method for the determination of tantalum content GB/T 223.43-1994 Methods for chemical analysis of iron, steel and alloy—Determination of tungsten content GB/T 223.43-2008 Iron,steel and alloy—Determination of tungsten content—Gravimetric method and spectrophotometric method GB/T 223.62-1988 Methods for chemical analysis of iron,steel and alloy—The butyl acetate extraction photometric method for the determination of phosphorus content GB/T 223.70-1989 Methods for chemical analysis of iron, steel and alloy—The o-phenanthroline spectrophotometric method for the determination of iron content GB/T 223.70-2008 Iron,steel and alloy—Determination of iron contents—o-Phenanthroline spectrophotometric method 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 223.72-2008 Iron,steel and alloy—Determination of sulfur content—Gravimetric method GB/T 223.75-1991 Methods for chemical analysis of iron, steel and alloy—The methanol distillation-curcumin photometric method for the determination of boron content GB/T 223.75-2008 Iron,steel and alloy—Determination of boron content—Methanol distillation-curcumin photometric method GB/T 223.85-2009 Steel and iron—Determination of sulfur content—Infrared absorption method after combustion in an induction furnace GB/T 223.86-2009 Steel and iron—Determination of total carbon content—Infrared absorption method after combustion in an induction furnace GB/T 11261-1989 Methods for chemical analysis of high carbon chromium bearing steel The pulse heating inert gas fusion-infra red absorption method for the determination of oxygen content GB/T 11261-2006 Steel and iron—Determination of oxygen content—The pulse heating inert gas fusion-infra-red absorption method GB/T 20066-2006 Steel and iron—Sampling and preparation of samples for the determination of chemical composition GB/T 20124-2006 Steel and iron—Determination of nitrogen content—Thermal conductimetric method after fusion in a current of inert gas (Routine method) GB/T 20127.3-2006 Steel and alloy—Determination of trace element contents—Part 3:Determination of calcium, magnesium, barium content by inductively coupled plasma atomic emission spectrometric method GB/T 38939-2020 Nickel-based alloy—Determination of multi-element contents—Spark discharge atomic emission spectrometric method(routine method) GB/T 223.8-2025 Iron,steel and alloy—Determination of aluminium content—Titrimetric method and spectrophotometric method GB/T 223.11-2025 Iron, steel and alloy—Determination of chromium content—Titrimetric method and spectrophotometric method GB/T 20127.3-2026 Steel and alloy—Determination of trace element contents—Part 3:Determination of scandium and barium content by inductively coupled plasma atomic emission spectrometric method