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GB/T 8704.7-2009 Ferrovanadium—Determination of phosphorus content—The molybdenum blue photometric method (USD) via email in 1-3 business day VALID
GB 223.48-1985 Methods for chemical analysis of iron,steel and alloy; The semixylenol orange photometric method for the determination of bismuth content (USD) via email in 1-3 business day
GB/T 4702.7-1984 Methods for chemical analysis of chromium metal;The atomic absorption spectrophotometric method for the determination of iron content (USD) via email in 1-3 business day ABOLISHED
GB/T 20124-2006 Steel and iron—Determination of nitrogen content—Thermal conductimetric method after fusion in a current of inert gas via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
WM 3010-1987 (USD) via email in 1-3 business day ABOLISHED
YB/T 5039-1993 Chemical analysis of lump molybdenum oxide The determination of moisture by the gravimetric method of lead molybdate (USD) via email in 1-3 business day ABOLISHED
GB/T 4701.2-2009 Ferrotitanium—Determination of silicon content—The sulphuric acid dehydration gravimetric method (USD) via email in 1-3 business day VALID
GB 4333.10-1990 Methods for chemical analysis of ferrosilicon-The infrared absorption method for the determination of carbon content (USD) via email in 1-3 business day ABOLISHED
GB/T 223.20-1994 Methods for chemical analysis of iron steel and alloy.The Potentiometric titration method for the determination of cobalt content (USD) via email in 1-3 business day VALID
YB/T 5334-2006 Methods for chemical analysis of vanadium pentoxide The AgDDTC spectrophotometric method for the determination of arsenic content (USD) via email in 1-3 business day ABOLISHED
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 (USD) via email in 1-3 business day VALID
GB/T 4702.4-1984 Methods for chemical analysis of chromium metal;The EDTA volumetric method for the determination of iron content (USD) via email in 1-3 business day ABOLISHED
GB/T 8704.7-1994 Methods for chemical analysis of ferrovanadium. The molybdenum blue photometric method for the determination of phosphorus content (USD) via email in 1-3 business day ABOLISHED
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 via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB 8704.1-1988 (USD) via email in 1-3 business day ABOLISHED
GB/T 5059.7-2014 Ferromolybdenum—The determination of carbon content—Infrared absorption method (USD) via email in 1-3 business day VALID
GB/T 223.35-1985 Methods for chemical analysis of iron,steel and alloy; The pulse heating inert gas fusion-coulometric titration method for the determination of oxygen content via email in ABOLISHED please email coc@codeofchina.com for quotation
GB/T 223.39-1994 Methods for chemical analysis iron,steel and alloy The sulphochlorophenol S photometric method for the determination of niobium content via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 5059.7-1988 Methods for chemical analysis of ferromolybdenum; The infrared absorption method for the determination of carbon content (USD) via email in 1-3 business day ABOLISHED
GB 7730.6-1988 Methods for chemical analysis of ferromanganese and blast furnace ferromanganese; The gasometric method for determination of carbon content (USD) via email in 1-3 business day ABOLISHED
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