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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 $40.00 immediately valid
GB/T 223.75-2008 Iron steel and alloy - Determination of boron content - Methanol distillation-curcumin photometric method $130.00 immediately valid
GB/T 223.76-1994 Methods for chemical analysis of iron, steel and alloy The flame atomic absorption spectrometric method for the determination of vanadium content $90.00 immediately valid
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 $90.00 immediately valid
GB/T 223.78-2000 Methods for Chemical Analysis of Iron, Steel and Alloy - Curcumin Spectrophotometric Method for the Determination of Boron Content $120.00 immediately valid
GB/T 223.79-2007 Iron and steel—Determination of multi-element contents—X-ray fluorescence spectrometry(Routine method) $80.00 immediately valid
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 $184.00 immediately valid
GB/T 223.80-2007 Iron steel and alloy—Determination of trace bismuth and arsenic contents—Hydride generation-atomic fluorescence spectrometric method $100.00 immediately valid
GB/T 223.81-2007 Iron steel and alloy—Determination of total aluminum and total boron contents—Microwave digestion-inductively coupled plasma mass spectrometric method $100.00 immediately valid
GB/T 223.82-2007 Steel and iron—Determination of hydrogen content—Inert gas impulse fusion heat conductivity method $40.00 immediately superseded
GB/T 223.82-2018 Steel and iron—Determination of hydrogen content—Thermal conductivity/infrared method after fusion under inert gas $130.00 immediately valid
GB/T 223.83-2009 Steel and iron—Determination of high sulfur content—Infrared absorption method after combustion in an induction furnace $100.00 immediately valid
GB/T 223.84-2009 Steel and iron—Determination of titanium content—Diantipyrylmethane spectrophotometric method $100.00 immediately valid
GB/T 223.85-2009 Steel and iron—Determination of sulfur content—Infrared absorption method after combustion in an induction furnace $100.00 immediately valid
GB/T 223.86-2009 Steel and iron—Determination of total carbon content—Infrared absorption method after combustion in an induction furnace $100.00 immediately valid
GB/T 223.87-2018 Iron,steel and alloy—Determination of calcium and magnesium—Inductively coupled plasma mass spectrometric method $140.00 immediately valid
GB/T 223.88-2019 Iron, steel and alloy—Determination of calcium and magnesium contents—Inductively coupled plasma atomic emission spectrometric method $170.00 immediately valid
GB/T 223.89-2019 Iron , steelandalloy — Determination of tellurium content —Hydride generation-atomic fluorescence spectrometric method $120.00 via email in 1~3 business day valid
GB/T 223.9-2000 Methods for chemical analysis of iron, steel and alloy－The chrom azurol S photometric method for the determination of aluminium content $160.00 via email in 1~3 business day superseded
GB/T 223.9-2008 Iron steel and alloy - Determination of aluminium content - Chrom azurol S photometric method $120.00 immediately valid
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