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GB/T 31927-2015 Zinc and aluminum based coatings on steel sheets and strips― Determination of lead and cadmium contents―Inductively coupled plasma mass spectrometric method 165.0 via email in 1~3 business day valid
YB/T 4475-2015 Steel sheets and strips. Analysis of zinc-and alumnium-based metallic coatings. Glow-discharge optical-emission spectrometric method via email in business day valid
YB/T 4220-2010 Vanadium pentoxide —Determination of sodium oxide and potaiumss oxide content—The inductively coupled plasmaatomic emission spectrometry 90.0 via email in 1~3 business day valid
GB/T 28898-2012 Evaluation of uncertainty in chemical composition analysis for metallurgical materials 1350.0 via email in 1~3 business day valid
GB/T 223.72-2008 Iron, Steel and Alloy - Determination of Sulfur Content - Gravimetric Method 130.0 via email in 1 business day valid
GB/T 17616-1998 Unified Numbering System for Designations of Iron, Steel and Alloy 60.0 via email in 1 business day superseded
GB/T 20123-2006 Steel and iron—Determination of total carbon and sulfur content Infrared absorption method after combustion in an induction furnace (routine method) 140.0 via email in 1 business day valid
GB/T 223.64-2008 Iron, Steel and Alloy - Determination of Manganese Content - Flame Atomic Absorption Spectrometric Method 100.0 via email in 1 business day valid
GB/T 223.67-2008 Iron, Steel and Alloy - Determination of Sulfur Content - Methylene Blue Spectrophotometric Method 80.0 via email in 1 business day valid
GB/T 223.9-2008 Iron steel and alloy - Determination of aluminium content - Chrom azurol S photometric method 100.0 via email in 1 business day valid
GB/T 223.83-2009 Steel and iron—Determination of high sulfur content—Infrared absorption method after combustion in an induction furnace 80.0 via email in 1 business day valid
YB/T 4217.2-2010 Coatings of the hot dip galvanizing(zinc-aluminum) sheet – Determination of Hg content – Atomic absorption spectrometric method 75.0 via email in 1~3 business day valid
GB/T 31926-2015 Zinc and aluminum based coatings on steel sheets and strips―Determination of lead,cadmium and chromium contens―Glow discharge atomic emission spectrometry method 255.0 via email in 1~3 business day valid
GB/T 20124-2006 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas 135.0 via email in 1~3 business day valid
GB/T 223.84-2009 Steel and iron—Determination of titanium content—Diantipyrylmethane spectrophotometric method 80.0 via email in 1 business day valid
GB/T 223.31-2008 Iron steel and alloy - Determination of arsenic content -Distillation-molybdenum blue spectrophotometric method 60.0 via email in 1 business day valid
GB/T 14203-2016 General rules for spark discharge atomic emission spectrometry 255.0 via email in 1~3 business day valid
GB/T 223.55-2008 Iron steel and alloy - Determination of tellurium content - Oscillo-polarographic method 80.0 via email in 1 business day valid
GB/T 17616-2013 Unified Numbering System for Designation of Iron, Steel and Alloy 660.0 via email in 1~3 business day valid
GB/T 24520-2009 Cast iron and low alloy steel—Determination of lanthanum, cerium and magnesium content—Inductively coupled plasma atomic emission spectrometric method 240.0 via email in 1~3 business day valid
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