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GB/T 11170-2008 Stainless steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (Routine method) (USD) via email in 1-3 business day VALID
GB 7731.4-1987 Methods for chemical analysis of ferrotungsten-The molybdenum blue photometric method for the determination of phosphorus content (USD) via email in 1-3 business day VALID
GB/T 7731.6-2008 Ferrotungsten - Determination of arsenic content - The molybdenum blue photometrie method and inductively coupled plasma-atomic emission spectrometry (USD) via email in 1-3 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 (USD) via email in 1-3 business day VALID
YB/T 178.2-2000 Methods for chemical analysis of silicon-aluminium alloy ad silicon-barium-aluminium alloy The barium sulphate gravimetric method for the determination of barium content (USD) via email in 1-3 business day ABOLISHED
GB/T 20127.10-2006 Steel and alloy - Determination of trace element contents Part 10: Determination of selenium content by hydride generation-atomic fluorescence spectrometric method (USD) via email in 1-3 business day VALID
GB/T 4699.6-2008 Ferrochromium and silicochromium - Determination of sulfur content - The infrared absorption method and the combustion-titration method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB 223.62-1988 Methods for chemical analysis of iron, steel and alloy; The butyl acetate extraction photometric method for the determination of phosphorus content (USD) via email in 1-3 business day VALID
GB/T 223.79-2007 Iron and steel—Determination of multi-element contents—X-ray fluorescence spectrometry(Routine method) (USD) via email in 1-3 business day VALID
GB/T 20126-2006 Unalloyed steel -- Determination of low carbon content -- Part 2: Infrared absorption method after combustion in an induction furnace (with preheating) (USD) via email in 1-3 business day VALID
GB/T 4336-2002 STANDARD test method for spark discharge atomic emission spectrometric analysis of carbon and low-Alloy steel (routine method) via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 5059.10-1988 Methods for chemical analysis of ferromolybdenum; The combustion-potassium iodate titration method for the determination of sulfur content (USD) via email in 1-3 business day ABOLISHED
GB/T 223.73-2008 Iron steel and alloy - Determination of iron contents - Titanium trichloride-potassium dichromate titration method (USD) via email in 1-3 business day VALID
GB/T 24583.2-2009 Vanadium—Nitrogen alloy—Determination of nitrogen content—Thermal conductimetric method after fusion in a current of inert gas (USD) via email in 1-3 business day ABOLISHED
GB/T 4699.5-1988 Methods for chemical analysis of silicochromium-The coulometric method for the determination of car (USD) via email in 1-3 business day ABOLISHED
GB/T 223.29-2008 Iron steel and alloy - Determination of lead content - Carrier precipitation-xylenol orange spectrophotometric method (USD) via email in 1-3 business day VALID
GB 223.11-1982 via email in ABOLISHED please email coc@codeofchina.com for quotation
GB/T 7315.6-1987 Methods for chemical analysis of vanadium pentoxide-The oscillopolarographic method for the determination of sulphur content (USD) via email in 1-3 business day ABOLISHED
GB/T 5687.2-2007 Ferrochromium silicochromium and nitrogen-bearing ferrochromium—Determination of silicon content—The perchloric acid dehydration gravimetric method (USD) via email in 1-3 business day VALID
GB/T 223.26-2008 Iron steel and alloy - Determination of molybdenum content - The thiocyanate spectrophotometric method (USD) via email in 1-3 business day VALID
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