Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB 3653.6-1988 Methods for chemical analysis of ferroboron-The reduced molybdoantimonylphosphoric acid photometric method for the determination of phosphorus content $60.00 via email in 1~3 business day valid
GB 3654.1-1983 Methods for chemical analysis of ferroniobium;The paper chromatographic gravimetric method for the determination of niobium and tantalum content $30.00 via email in 1~3 business day valid
GB 3654.10-1983 Methods for chemical analysis of ferroniobium;The EDTA volumetric method for the determination of aluminum content $60.00 via email in 1~3 business day superseded
GB 3654.3-1983 Methods for chemical analysis of ferroniobium;The gravimetric method for the determination of silicon content $30.00 via email in 1~3 business day abolished
GB 3654.4-1983 Methods for chemical analysis of ferroniobium;The combustion gravimetric method for the determination of carbon content $105.00 via email in 1~3 business day valid
GB 3654.5-1983 Methods for chemical analysis of ferroniobium;The molybdenum blue photometric method for the determination of the phosphorus content $60.00 via email in 1~3 business day valid
GB 3654.7-1983 Methods for chemical analysis of ferroniobium;The methylene blue photometric method for the determination of sulfur content $45.00 via email in 1~3 business day superseded
GB 3654.8-1983 Methods for chemical analysis of ferroniobium;The chromotropic acid photometric method for the determination of titanium content $30.00 via email in 1~3 business day abolished
GB 3654.9-1983 Methods for chemical analysis of ferroniobium;The thiocyanate photometric method for the determination of tungsten content $30.00 via email in 1~3 business day valid
GB 3657-1983 Measurement method of direct magnetic properties of soft magnetic alloys $120.00 immediately superseded
GB 3771-1983 Conversion of hardness and strength for copper alloys $480.00 via email in 1~5 business day valid
GB 3825-1983 Methods for chemical analysis of tungsten-molybdenum alloy;The EDTA volumetric method for the determination of molybdenum content $180.00 via email in business day superseded
GB 39176-2020 Rare earth products packing, marking, transport and storage $165.00 via email in 1~3 business day valid
GB 4134-1994 Gold $184.00 via email in 1~3 business day abolished
GB 4135-1994 Silver ingots $184.00 via email in 1~3 business day abolished
GB 4161-1984 Standard test method for plane-strain fracture toughness of metallic materials $465.00 via email in 1~5 business day valid
GB 4192-1984 Method for the determination of the resistivity of tungsten and molybdenum used in electric light sources and vacuum tubes $60.00 via email in 1~3 business day valid
GB 4223-2004 Iron and steel scrpas $150.00 via email in 1~3 business day abolished
GB 4234-1994 Stainless steel for surgical implants $264.00 via email in 1~3 business day abolished
GB 4237-1992 Hot rolled stainless steel sheets and plates $80.00 immediately superseded
* Related standard quantity: * Page quantity: * Current: * First Previous [6][7][8][9][10][11][12][13][14][15][16] Next End



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