Code of China Chinese Classification Professional Classification ICS Classification Latest Value-added Services

LoginRegister

Title Standard No. Implemented On
Methods for chemical analysis of high purity cobalt—Determination of impurity elements content—Glow discharge mass spectrometryYS/T 1011-20142015-4-1
Chemical Analysis Methods for High Purity Cadmium Determination of Trace Impurity Elements Content Glow Discharge Mass SpectrometryYS/T 917-20132014-3-1
Methods for chemical analysis of cobalt—Part 4:Determination of arsenic content—Molybdenum blue spectrophotometryYS/T 281.4-20112012-7-1
Methods for chemical analysis of cobalt- Part 6:Determination of magnesium content-Flame atomic absorption spectrometeryYS/T 281.6-20112012-7-1
Methods for chemical analysis of cobalt- Part 9:Determination of lead content-Flame atomic absorption spectrometeryYS/T 281.9-20112012-7-1
Methods for chemical analysis of cobalt- Part 10:Determination of nickel content-Flame atomic absorption spectrometeryYS/T 281.10-20112012-7-1
Methods for chemical analysis of cobalt- Part 18:Determination of sodium content-Flame atomic absorption spectrometeryYS/T 281.18-20112012-7-1
Methods for chemical analysis of cobalt- Part 14:Determination of carbon content-Infra-red absorption method after high frequency induction furnace combustionYS/T 281.14-20112012-7-1
Methods for chemical analysis of cobalt- Part 16:Determination of arsenic cadmium copper zinc.lead bismuth tin antimony silicon manganese iron nickel aluminum and magnesium content-Direct current arc atomic emission spectrometeryYS/T 281.16-20112012-7-1
Methods for chemical analysis of cobalt- Part 17:Determination of aluminum,manganese nickel copper zinc,cadmium tin arsenic antimony lead and bismuth content-Inductively coupled plasma mass spectrometeryYS/T 281.17-20112012-7-1
Methods for chemical analysis of cobalt- Part 13:Determination of sulphur content-Infra-red absorption method after high frequency induction furnace combustionYS/T 281.13-20112012-7-1
Methods for chemical analysis of cobalt- Part 8:Determination of cadmium content-Flame atomic absorption spectrometeryYS/T 281.8-20112012-7-1
Methods for chemical analysis of cobalt--Part 1:Determination of iron content--Sulfosalicylic acid spectrophotometryYS/T 281.1-20112012-7-1
Methods for chemical analysis of cobalt- Part 7:Determination of zinc content-Flame atomic absorption spectrometeryYS/T 281.7-20112012-7-1
Mehtods for chemical analysis of cobalt--Part 2:Determination of aluminum content--Chromeszurol S spectrophotometryYS/T 281.2-20112012-7-1
Methods for chemical analysis of cobalt—Part 5:Determination of phosphorus content—Molybdenum blue spectrophotometryYS/T 281.5-20112012-7-1
Methods for chemical analysis of cobalt- Part 20:Determination of oxide Impulse infrared absorptionYS/T 281.20-20112012-7-1
Methods for chemical analysis of cobalt- Part 12:Determination of arsenic antimony bismuth tin and lead content-Electrothermal atomic absorption spectrometeryYS/T 281.12-20112012-7-1
Methods for chemical analysis of cobalt- Part 3:Determination of silicon content-Molybdenum blue spectrophotometeryYS/T 281.3-20112012-7-1
Methods for chemical analysis of cobalt- Part 19:Determination of calcium magnesium manganese iron cadmium zinc content-Inductively coupled plasma atomic emission spectrometeryYS/T 281.19-20112012-7-1
Methods for chemical analysis of cobalt- Part 11:Determination of copper and manganese contents-Flame atomic absorption spectrometeryYS/T 281.11-20112012-7-1
Methods for chemical analysis of cobalt- Part 15:Determination of arsenic antimony and bismuth content-Hydride generation-atomic fluorescence spectrometeryYS/T 281.15-20112012-7-1
Methods for chemical analysis of cadmium—Part 7:Determination of iron content—1,10-Phenanthroline spectrophotometryYS/T 74.7-20102011-3-1
Methods for chemical analysis of cadmium—Part 9:Determination of tin content—Hydride generation-atomic fluorescence spectrometryYS/T 74.9-20102011-3-1
Methods for chemical analysis of cobalt sulfide concentrate - Part 4: Determination of silicon dioxide - Potassium silicofluoride capacity methodYS/T 349.4-20102011-3-1
Methods for chemical analysis of cobalt sulfide concentrate - Part 2: Determination of copper content - Flame atomic absorption spectrometryYS/T 349.2-20102011-3-1
Methods for chemical analysis of cadmium—Part 2:Determination of antimony content—Hydride generation-atomic fluorescence spectrometryYS/T 74.2-20102011-3-1
Methods for chemical analysis of cadmium—Part 3:Determination of nickel content—Electrothermal atomic absorption spectrometric methodYS/T 74.3-20102011-3-1
Methods for chemical analysis of cadmium—Part 4:Determination of lead content—Flame atomic absorption spectrometryYS/T 74.4-20102011-3-1
Methods for chemical analysis of cadmium - Part 11: Determination of arsenic,antimony,nickel,lead,copper,zinc,iron,thallium,tin and silver contents - Inductively coupled plasma atomic YS/T 74.11-20102011-3-1
Methods for chemical analysis of cadmium - Part 8: Determination of thallium content - Crystal violet spectrophotometryYS/T 74.8-20102011-3-1
Methods for chemical analysis of cadmium—Part 5:Determination of copper content—Lead diethyldithio-carbamate spectrophotometryYS/T 74.5-20102011-3-1
Methods for chemical analysis of cobalt sulfide concentrate—Part 3:Determination of manganese content—Flame atomic absorption spectrometryYS/T 349.3-20102011-3-1
Methods for chemical analysis of cadmium - Part 6: Determination of zinc content - Flame atomic absorption spectrometryYS/T 74.6-20102011-3-1
Methods for chemical analysis of cadmium—Part 1:Determination of arsenic content—Hydride generation-atomic fluorescence spectrometryYS/T 74.1-20102011-3-1
Methods for chemical analysis of cadmium—Part 10:Determination of silver content—Flame atomic absorption spectrometryYS/T 74.10-20102011-3-1
Method for chemical analysis of cobalt oxide - Part 5: Determination of silicon content - Molybdenum blue spectrophotometryYS/T 710.5-20092010-6-1
Methods for chemical analysis of bismuth—Determination of zinc content—Solid-liquid extraction-flame atomic absorption spectrophotometric methodYS/T 536.5-20092010-6-1
Method for chemical analysis of cobalt oxide—Part 4:Determination of arsenic content—Atomic fluorescence spectrometryYS/T 710.4-20092010-6-1
Method for chemical analysis of cobalt oxide - Part 6: Determination of calcium,cadmium,copper,iron,magnesium,manganese,nickel,lead,zinc content - Inductively coupled plasma-atomic emiYS/T 710.6-20092010-6-1
Methods for chemical analysis of bismuth—Determination of tin content—Coprecipitation with beryllium-photometric methodYS/T 536.10-20092010-6-1
Method for chemical analysis of cobalt oxide - Part 2: Determination of sodium content - Flame atomic absorption spectrometry methodYS/T 710.2-20092010-6-1
Methods for chemical analysis of cobalt sulfide concentrate—Part 1:Determination of cobalt content—Potentiometric titration methodYS/T 349.1-20092010-6-1
Methods for chemical analysis of bismuth - Determination of nickel content - Electrothermal atomic absorption spectrometric methodYS/T 536.12-20092010-6-1
Method for chemical analysis of bismuth - Determination of mercury content - Atomic fluorescence spectrometric methodYS/T 536.11-20092010-6-1
Methods for chemical analysis of bismuth—Determination of antimony content—Melachite green photometric methodYS/T 536.3-20092010-6-1
Methods for chemical analysis of bismuth - Determination of silver content - Flame atomic absorption spectrophotometric method and electrothermal atomic absorption spectrometric methodYS/T 536.4-20092010-6-1
Methods for chemical analysis of bismuth—Determination of lead content—Electrothermal atomic absorption spectrometric methodYS/T 536.6-20092010-6-1
Method for chemical analysis of cobalt oxide—Part 3:Determination of sulphur content—High frequency combustion-infrared absorption methodYS/T 710.3-20092010-6-1
Methods for chemical analysis of bismuth - Determination of cadmium content - Electrothermal atomic absorption spectrometric methodYS/T 536.13-20092010-6-1
Methods for chemical analysis of bismuth—Determination of arsenic content—Atomic fluorescence spectrometric methodYS/T 536.7-20092010-6-1
Methods for chemical analysis of bismuth - Determination of chlorine content - Mercuric thiocyanate photometric methodYS/T 536.8-20092010-6-1
Methods for chemical analysis of bismuth—Determination of tellurium content—Coprecipitation with arsenic-oscillopolarographic methodYS/T 536.9-20092010-6-1
Methods for chemical analysis of bismuth - Determination of copper content - Bis-acetaldehyde-oxalyldihydrazone photometric methodYS/T 536.1-20092010-6-1
Methods for chemical analysis of bismuth - Determination of iron content - Electrothermal atomic absorption spectrometric methodYS/T 536.2-20092010-6-1
Methods for chemical analysis of cobalt oxalate - Part 8: Determination of nicke,copper,iron,zinc,aluminium,manganese lead,arsenic,calcium,magnesium and sodium content - InductivelyGB/T 23273.8-20092009-11-1
Methods for chemical analysis of cobalt oxalate - Part 6: Determination of chlorine ion content - Ion selective electrode methodGB/T 23273.6-20092009-11-1
Methods for chemical analysis of cobalt oxalate - Part 2: Determination of lead content - Electrothermal atomic absorption spectrometryGB/T 23273.2-20092009-11-1
Methods for chemical analysis of cobalt oxatate - Part 3: Determination of arsenic content - Hydride generation-atomic fluorescence spectrometryGB/T 23273.3-20092009-11-1
Methods for chemical analysis of cobalt oxalate - Part 7: Determination of sulfate ion content - Combusition - IodimetryGB/T 23273.7-20092009-11-1
Methods for chemical analysis of cobalt oxalate - Part 5: Determination of calcium,magnesium and sodium content - Flame atomic absorption spectrometryGB/T 23273.5-20092009-11-1
Methods for chemical analysis of cobalt oxalate - Part 1: Determination of cobalt content - Potentiometric titration methodGB/T 23273.1-20092009-11-1
Methods for chemical analysis of cobalt oxalate - Part 4: Determination of silicon content - Molybdenum blue spectrophotometryGB/T 23273.4-20092009-11-1
Methods for chemical analysis of crude gold - Part 5: Determination of mercury content - Cold atomic absorption spectrometryGB/T 15249.5-20092009-10-1
Methods for chemical analysis of crude gold - Part 4: Determination of lead content - EDTA titrimetric methodGB/T 15249.4-20092009-10-1
Methods for chemical analysis of crude gold - Part 2: Determination of silver content - Fire assay gravimetric and EDTA titrimetric methodsGB/T 15249.2-20092009-10-1
Methods for chemical analysis of crude gold - Part 1: Determination of gold content - Fire assay gravimetric methodGB/T 15249.1-20092009-10-1
Methods for chemical analysis of crude gold - Part 3: Determination of copper content - Iodometric methodGB/T 15249.3-20092009-10-1
Calcium metal and its productsGB/T 4864-20082009-4-1
Method for analysis of calcium metal - Part 3: Direct determination of iron,nickel,copper,manganese and magnesium in calcium metal by atomic absorptiom spectrophotometryGB/T 10267.3-20082009-4-1
Chemical analysis of gallium Part 1 Determination of copper content The 2 9-dimethyl-4 7-diphenyl-1 10-phenanthroline spectrophotometric methodYS/T 520.1-20072008-5-1
Chemical analysis of gallium Part 12 Determination of lead copper nickel aluminum indium and zinc content The spectrochemical methodYS/T 520.12-20072008-5-1
Chemical analysis of gallium Part 2 Determination of lead content The 4-(2-pyridylazo)-resorcinol spectrophotometric methodYS/T 520.2-20072008-5-1
Chemical analysis of gallium Part 5 Determination of calcium content The N20-C2H2 flame atomic absorption spectral methodYS/T 520.5-20072008-5-1
Chemical analysis of gallium Part 9 Determination of germanium content The phenyl fluorone-polyethylene glycol octyl phenyl ether extraction spectrophotometric methodYS/T 520.9-20072008-5-1
Chemical analysis of gallium Part 10 Determination of zinc content The atomic absorption spectral methodYS/T 520.10-20072008-5-1
Chemical analysis of gallium Part 8 Determination of indium content The ethyl violet spectrophotometric methodYS/T 520.8-20072008-5-1
Chemical analysis of gallium Part 4 Determination of iron content The 4 7-diphenyl-1 10-phenanthroline spectrophotometric methodYS/T 520.4-20072008-5-1
Chemical analysis of gallium Part 6 Determination of tin content The salicylfluorone cetyltrimethyl ammonium bromide spectrophotometric methodYS/T 520.6-20072008-5-1
Chemical analysis of gallium Part 7 Determination of silicon content The extraction-molybdenum blue spectrophotometric methodYS/T 520.7-20072008-5-1
Chemical analysis of gallium Part 3 Determination of aluminium content The chromazurol S-tetrdecyl pyridine bromide spectrophotometric methodYS/T 520.3-20072008-5-1
Chemical analysis of gallium Part 11 Determination of hydrargyrum content The cold vapor atomic absorption spectral methodYS/T 520.11-20072008-5-1
Methods for chemical analysis of silver - Determination of silver content - Silver chloride precipitation-Flame atomic absorption spectrometric methodGB/T 11067.1-20062007-2-1
Methods for chemical analysis of silver - Determination of copper contents - Flame atomic absorption spectrometric methodGB/T 11067.2-20062007-2-1
Methods for chemical analysis of silver - Determination of iron contents - Flame atomic absorption spectrometric methodGB/T 11067.6-20062007-2-1
Methods for chemical analysis of silver - Determination of antimony content - The inductively coupled plasma atomic emission spectrometric methodGB/T 11067.4-20062007-2-1
Methods for chemical analysis of silver - Determination of lead and bismuth contents - Flame atomic absorption spectrometric methodGB/T 11067.5-20062007-2-1
Reduced germanium ingotGB/T 11070-20062006-11-1
Zone-refined germanium ingotGB/T 11071-20062006-11-1
Vanadium -- Determination of iron content -- Isoanyl alcohol extraction spectrophotometric methodYS/T 540.5-20062006-10-11
Vanadium -- Determination of chromium content -- Diphenylcarbazide spectrophotometric methodYS/T 540.2-20062006-10-11
Methods for chemical analysis of gallium The spectrochemical method for the determination of lead coper nickel aluminum indium and zinc contentsYS/T 520.12-20062006-10-11
Thallium--Determination of silicon content--Isoamyl alcohol extraction molybdenum blue absorption photometric methodYS/T 569.9-20062006-10-11
Methods for chemical analysis of gallium The 2 9-dimethy-4 7-diphenyl-1 10-phenanthroline photometric method for the determination of copper contentYS/T 520.1-20062006-10-11
Vanadium -- Determination of silicon content -- N-butyl alcohol extraction spectrophotometric methodYS/T 540.6-20062006-10-11
Methods for chemical analysis of gallium The cold vapor atomic absorption spectrophotometric method for the determination of mercury contentYS/T 520.11-20062006-10-11
Determination of thorium dioxide in thorium-tungsten alloys -- weight methodYS/T 501-20062006-10-11
Thallium - Determination of cadmium content - Dithizone extraction photometric methodYS/T 569.5-20062006-10-11
Method for chemical analysis of platinum-rhodium alloysYS/T 561-20062006-10-11
Method for chemical analysis of platinum-ruthenium alloysYS/T 562-20062006-10-11
Chemical analysis of zirconium powder for electro-vacuum uses The gravimetric method for determination of total zirconium and active zirconiumYS/T 574.1-20062006-10-11
Vanadium -- Determination of oxygen content -- Impulse fusion-gas chromatographic methodYS/T 540.7-20062006-10-11
Lithium niobate single crystalsYS/T 554-20062006-10-11
Methods for chemical analysis of gallium The atomic absorption spectrophotometric method for the determination of zine contentYS/T 520.10-20062006-10-11
Vanadium -- Determination of aluminium content -- CAS-TPC spectrophotometric methodYS/T 540.3-20062006-10-11
Methods for chemical analysis of calcium-silicon The EDTA titrimetric method for the determination of calcium contentYB/T 5313-20062006-10-11
Thallium - Determination of lead content - Dithizone extraction photometric methodYS/T 569.6-20062006-10-11
Methods for chemical analysis of calcium-silicon - The EDTA titrimetric method for the determination of aluminum contentYB/T 5314-20062006-10-11
Determination of rhenium in rhenium-tungsten alloys -- spectrophotometric method using dimethylglyoximeYS/T 502-20062006-10-11
Thallium--Determination of zinc content--Dithizone extraction photometric methodYS/T 569.4-20062006-10-11
Thallium - Determination of aluminum content - Chromazurol S photometric methodYS/T 569.7-20062006-10-11
Thallium - Determination of iron content - 1 10-phenanthroline photometric methodYS/T 569.2-20062006-10-11
Vanadium -- Determination of vanadium content -- Potassium permanganate-ammonium ferrous sulphate volumetric methodYS/T 540.1-20062006-10-11
Method for chemical analysis of platinum-palladium-rhodium alloysYS/T 563-20062006-10-11
Methods for chemical analysis of calcium-siliconYB/T 5312-20062006-10-11
Thallium - Determination of copper content - Neocuproine-chloroform extraction photometric methodYS/T 569.1-20062006-10-11
Vanadium -- Determination of iron content -- Phenanthrline spectrophotometric methodYS/T 540.4-20062006-10-11
Thallium - Determination of mercury content - Dithizone-carbon tetrachloride extraction photometric methodYS/T 569.3-20062006-10-11
Technical requirements of hydro-cinnabarYS/T 507-20062006-10-11
Thallium - Determination of indium content - Crystal violet extraction photometric methodYS/T 569.8-20062006-10-11
Tantalum powdersYS/T 573-20062006-10-11
Thallium - Determination of thallium content - EDTA volumetric methodYS/T 569.10-20062006-10-11
Iridium powderGB/T 1422-20042004-7-1
Sponge palladiumGB/T 1420-20042004-7-1
Rhodium powerGB/T 1421-20042004-7-1
Sponge platinumGB/T 1419-20042004-7-1
Gold ingotsGB/T 4134-20032004-5-1
Measuring method for thermoelectricity force of precious metals and their alloys pair up with platinumGB/T 19198-20032004-1-1
Methods for chemical analysis of crude silverGB/T 18307-20012001-8-1
Cobalt oxideYS/T 256-20002001-3-1
CobaltYS/T 255-20002000-10-1
Rare earth metals and their oxide - Determination of cerium oxide content - Fluorescent spectrophotometric methodGB/T 12690.29-20002000-1-1
Rare earth metals and their oxide--Determination of calcium oxide content--Inductively coupled plasma atomic emission spectrographic methodGB/T 12690.28-20002000-1-1
Dysprosium and dysprosium oxide--Determination of tantalum content--Para-chloride phenylfluorone--cetyl trimethyl ammonium bromide--ethanol spectrophotometric methodGB/T 15917.3-19951996-8-1
Calcium metal and its productsGB/T 4864-19951996-8-1
BismuthGB/T 915-19951996-3-1
Crude Gold-Determination of copper content-Iodometric methodGB/T 15249.3-19941995-8-1
Crude Gold-Determination of gold content-Fire assay gravimetric methodGB/T 15249.1-19941995-8-1
Crude Gold-Determination of lead content-EDTA titrimetric methodGB/T 15249.4-19941995-8-1
Crude Gold-Determination of mercury content-Cold atomic absorption spectrometric methodGB/T 15249.5-19941995-8-1
Crude Gold-Determination of silver content-EDTA titrimetric methodGB/T 15249.2-19941995-8-1
Silver ingotsGB 4135-19941994-12-1
Samarium metalGB/T 2968-19941994-12-1
Tantalum and tantalum alloy rods and barsGB/T 14841-19931994-9-1
Niobium rods and barsGB/T 14842-19931994-9-1
Lithium niobate single crystalsGB/T 14843-19931994-9-1
discsGB/T 14592-19931994-7-1
Measuring methods of rare-earth phosphorus with red green blue luminescence for fluorescent lamp--Measuringmethod of relative brightnessGB/T 14634.1-19931994-6-1
Rare earth metals and their compounds. Determination of total rare earth contents. Rare earth oxalate gravimetric methodGB/T 14635.1-19931994-6-1
Rare-earth phosphors with red green blue luminescencefor fluorescent lamp--Measuring method of chromaticity coordinatesGB/T 14634.2-19931994-6-1
Rare-earth phosphorus with red green blue luminescence for fluorescent lampGB/T 14633-19931994-6-1
MischmetalGB/T 4153-19931994-3-1
Gold alloys-Determination of gadolinium contentGB/T 15072.11-19941994-1-2
Gold,silver and palladium alloys-Determination of nickel,zinc and manganese contentsGB/T 15072.15-19941994-1-2
Gold,platinum and palladium alloys-Determination of platinum contentGB/T 15072.3-19941994-1-2
Methods for chemical analysis of tantalum and niobium-Determination of nitrogen content in tantalumGB/T 15076.13-19941994-1-2
Gold,Palladium and silver alloys-Determination of copper contentGB/T 15072.8-19941994-1-2
Methods for chemical analysis of tantalum and niobium-Determination of iron,nickel,chromium,titanium,zirconium,aluminum and manganese contents in niobiumGB/T 15076.10-19941994-1-2
Methods for chemical analysis of tantalum and niobium-Determination of molybdenum and tungsten contentsGB/T 15076.5-19941994-1-2
Platinum alloys-Determination of tungsten contentGB/T 15072.17-19941994-1-2
Methods for chemical analysis of tantalum and niobium-Determination of iron contentGB/T 15076.4-19941994-1-2
Dysprosium metalGB/T 15071-19941994-1-2
Palladium,silver alloys-Determination of palladium contentGB/T 15072.4-19941994-1-2
Composite material strips of precious metals and their alloysGB/T 15159-19941994-1-2
Silver alloys-Determination of silver contentGB/T 15072.2-19941994-1-2
Methods for chemical analysis of tantalum and niobium-Determination of copper contentGB/T 15076.3-19941994-1-2
Silver alloys-Determination of aluminium contentGB/T 15072.14-19941994-1-2
GoldGB 4134-19941994-1-2
Methods for chemical analysis of tantalum and niobium-Determination of hydrogen contentGB/T 15076.15-19941994-1-2
Gold alloys-Determination of zirconium contentGB/T 15072.20-19941994-1-2
Methods for chemical analysis of tantalum and niobium-Determination of iron,chromium,nickel,manganese,titanium,aluminum,copper and zirconium contents in tantalumGB/T 15076.9-19941994-1-2
Gold alloys-Determination of indium contentGB/T 15072.9-19941994-1-2
Methods for chemical analysis of tantalum and niobium-Determination of sulphur content in niobiumGB/T 15076.8-19941994-1-2
Gold,Palladium alloys-Determination of silver contentGB/T 15072.5-19941994-1-2
Gold,palladium alloys.Determination of gold contentGB/T 15072.1-19941994-1-2
Methods for chemical analysis of tantalum and niobium-Determination of silicon content in tantalumGB/T 15076.6-19941994-1-2
Silver alloys-Determination of vanadium contentGB/T 15072.12-19941994-1-2
Methods for chemical analysis of tantalum and niobium- Determihation of tantalum content in niobiumGB/T 15076.1-19941994-1-2
Gold alloys-Determination of copper and manganese contentsGB/T 15072.16-19941994-1-2
Gold alloys-Determination of nickel contentGB/T 15072.10-19941994-1-2
Silver alloys-Determination of cerium contentGB/T 15072.13-19941994-1-2
Platinum,Palladium alloys-Determination of iridium contentGB/T 15072.6-19941994-1-2
Methods for chemical analysis of tantalum and niobium-Determination of arsenic antimony,lead,tin and bismuth contents in niobiumGB/T 15076.11-19941994-1-2
Methods for chemical analysis of tantalum and niobium-Determination of phospherus content in niobiumGB/T 15076.7-19941994-1-2
Gold alloys-Determination of iron contentGB/T 15072.18-19941994-1-2
Tungsten carbide powderGB/T 4295-19931993-12-1
and zirconium alloys - Determination of cadmium content-Oscillopolarographic methodGB/T 13747.17-19921993-6-1
and zirconium alloys - Determination of tungsten content - Thiocyanate spectrophotometric methodGB/T 13747.10-19921993-6-1
and zirconium alloys - Determination of tin contentGB/T 13747.1-19921993-6-1
and zirconium alloys - Determination of copper content-2, 9 - Dimethyl-1, 10-phenanthroline spectrophotometric methodGB/T 13747.6-19921993-6-1
and zirconium alloys - Determination of hafnium content-Emission spectrographic methodGB/T 13747.20-19921993-6-1
and zirconium alloys - Determination of hydrogen content - Vacuum heating gas chromatographic methodGB/T 13747.21-19921993-6-1
and zirconium alloys - Determination of manganese content-Patassium periodate spectrophotometric methodGB/T 13747.7-19921993-6-1
and zirconium alloys - Determination of nitrogen content - Distillation-Nessler reagent spectrophotometric methodGB/T 13747.23-19921993-6-1
Zirconium and zirconium alloys-Determination of vanadium content-N-benzoyl-N-phenylhydroxylamine spectrophotometric methodGB/T 13747.18-19921993-6-1
and zirconium alloys - Determination of magesium content-Flame absorzption spectrometric methodGB/T 13747.9-19921993-6-1
and zirconium alloys - Determination of aluminium content - Chrome azurol S spectrophotometric methodGB/T 13747.5-19921993-6-1
and zirconium alloys - Determination of cobalt content-1-nitroso-2-hydroxy-3.6-naphthalene - Disulfonic acid(sodium salt) spectrophotometric methodGB/T 13747.8-19921993-6-1
and zirconium alloys - Determination of molybdenum content - Thiocyanate spectrophotometric methodGB/T 13747.11-19921993-6-1
and zirconium alloys - Determination of iron content-1, 10-phenanthroline spectrophotometric methodGB/T 13747.2-19921993-6-1
and zirconium alloys - Determination of nickel content - Dimethylglyoxime spectrophotometric methodGB/T 13747.3-19921993-6-1
and zirconium alloys - Determination of titanium content - Diantipyrylmethane spectrophotometric methodGB/T 13747.19-19921993-6-1
and zirconium alloys - Determination of oxygen content - Inert gas fusion coulometric methodGB/T 13747.22-19921993-6-1
and zirconium alloys - Determination of lead content-Oscillopolarographic methodGB/T 13747.13-19921993-6-1
and zirconium alloys - Determination of chromium content - Diphenylcarbazide spectrophotometric methodGB/T 13747.4-19921993-6-1
and zirconium alloys - Determination of carbon content - Combustion coulometric methodGB/T 13747.24-19921993-6-1
and zirconium alloys - Determination of uranium content - Catalytic-oscillopolarographic methodGB/T 13747.14-19921993-6-1
and zirconium alloys - Determination of chloric content - Silver chlorode nephrelometry methodGB/T 13747.16-19921993-6-1
and zirconium alloys - Determination of boron content - Curcumin spectrophotometric methodGB/T 13747.15-19921993-6-1
Yttrium metalGB/T 13559-19921993-4-1
Rare-earth metals and their oxides--Determination of phosphorus content--Molybdenum blue spectrophotometric methodGB/T 12690.21-19901992-1-1
Neodymium and samarium-Determination of carbon content-High frequency-Infrared absorption methodGB/T 12690.13-19901992-1-1
Rare-earth metals and their oxides--Determination of acid soluble silicon oxide--Molybdenum blue spectrophotometric methodGB/T 12690.23-19901992-1-1
Rare-earth metals and their oxides--Determination of magnesium content--Flame atomic absorption spectrometric methodGB/T 12690.25-19901992-1-1
Rare-earth metals and their oxides--Determination of sodium content--Flame atomic absorption spectrometric methodGB/T 12690.26-19901992-1-1
Rare-earth metals and their oxides--Determination of thorium content--Arsenazo Ⅲ spectrophotometric methodGB/T 12690.15-19901992-1-1
Rare-earth metals and their oxides-Determination of ignition loss-Gravimetric methodGB/T 12690.27-19901992-1-1
Cast tungsten carbideGB/T 2967-19891990-3-1
Gold-Determination of silver content-Flame atomic absorption spectometric methodGB/T 11066.2-19891990-2-1
Silver-Determination of silver content-Silver chloride precopitation-Flame atomic absorption spectrometric methodGB/T 11067.1-19891990-2-1
Reduced germanium ingotGB/T 11070-19891990-2-1
Gold-Determination of silver, copper, lead, and bismuth contents-Emission spectrographic methodGB/T 11066.5-19891990-2-1
Gold-Determination of gold content-Fire assaying methodGB/T 11066.1-19891990-2-1
Silver-Determination of copper, bismuth, iron, lead, gold and antimony contents-Emission spectrometric methodGB/T 11067.7-19891990-2-1
Silver-Determination of antimony content-2-(5-bromo -2-pyridylazo)-5-diethylaminophenol spectrophotometricmethodGB/T 11067.4-19891990-2-1
Zone-refined germanium ingotGB/T 11071-19891990-2-1
Gold-Determination of iron content-Flame atomic absorption spectrometric methodGB/T 11066.3-19891990-2-1
Gold-Determination of copper, lead, bismuth and antimony contents-Flame atomic absorption spectrometric methodGB/T 11066.4-19891990-2-1
Sponge platinumGB/T 1419-19891990-1-1
Rhodium powderGB/T 1421-19891990-1-1
Sponge palladiumGB/T 1420-19891990-1-1
Iridum powderGB/T 1422-19891990-1-1
Methods for chemical analysis of calcium-silicon-The EDTA titrimetric method for the determination of calcium contentGB/T 4700.2-19881990-1-1
Method for analysis of calcium metal-The direct determination of iron,nickel,copper,manganese and magnesium in calcium metal by atomic absorption spectrometryGB/T 10267.3-19881989-10-1
Vanadium; Determination of iron content; Phenanthroline spectrophotometric methodGB/T 8639.4-19881989-1-1
Vanadium; Determination of iron content; Isoamyl alcohol extraction spectrophotometric methodGB/T 8639.5-19881989-1-1
Vanadium; Determination of vanadium content; Potassium permanganate-ammonium ferrous sulphate volumetric methodGB/T 8639.1-19881989-1-1
Vanadium; Determination of chromium content; Diphenylcarbazide spectrophotometric methodGB/T 8639.2-19881989-1-1
Vanadium; Determination of silicon content; N-butyl alcohol extraction spectrophotometric methodGB/T 8639.6-19881989-1-1
Niobium seamless tubesGB/T 8183-19871988-7-1
Methods for chemical analysis of gold concentrates; The iodometric method for the determination of arsenic contentGB/T 7739.4-19871988-1-1
Methods for chemical analysis of gold concentrates; The fire-assaying method for the determination of gold and silver contentGB/T 7739.1-19871988-1-1
Methods for chemical analysis of gold concentrates; The flame atomic absorption spectrophotometric methods for the determination of silver contentGB/T 7739.2-19871988-1-1
Sacrificial anode of Al-Zn-In system alloy--Chemical analysisGB/T 4949-19851985-10-1
Sacrificial anode of Zn-Al-Cd alloy; Chemical analysisGB/T 4951-19851985-10-1
Sacrificial anode of Zn-Al-Cd alloyGB/T 4950-19851985-10-1
Methods for chemical analysis of calcium-silicon;The EDTA titrimetric method for the determination of aluminum contentGB/T 4700.3-19841985-9-1
Methods for chemical analysis of calcium-silicon;The perchloric acid dehydration-gravimetric method for the determination of silicon contentGB/T 4700.1-19841985-9-1
Methods for chemical analysis of gallium;The 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline photometric method for the determination of copper contentGB/T 4375.1-19841985-4-1
Methods for chemical analysis of gallium;The spectrochemical method for the determination of lead,copper,nickel,aluminum,indium and zinc contentGB/T 4375.12-19841985-4-1
Methods for chemical analysis of gallium;The cold vapor atomic absorption spectrophotometric method for the determination of mercury contentGB/T 4375.11-19841985-4-1
Methods for chemical analysis of gallium;The atomic absorption spectrophotometric method for the determination of zinc contentGB/T 4375.10-19841985-4-1
High pure lithiumGB/T 4370-19841985-4-1
VanadiumGB/T 4310-19841985-3-1
Technical requirements of hydro-cinnabarGB/T 3631-19831984-2-1
Electrolytic manganese metalGB/T 3418-19821983-11-1
Determination of thorium dioxide in thorium-tungsten alloys;Weight methodGB/T 3312-19821983-9-1
Chemical analysis of zirconium powder for electro-vacuum uses;The gravimetric method for determination of total zirconium and active zirconiumGB/T 3256.1-19821983-3-1
Thallium;Determination of silicon content;Isoamyl alcohol extraction molybdenum blue absorption photometric methodGB/T 2592.9-19811982-3-1
Thallium;Determination of aluminum content;Chromazurol S photometric methodGB/T 2592.7-19811982-3-1
Thallium;Determination of mercury content;Dithizone-carbon tetrachloride extraction photometric methodGB/T 2592.3-19811982-3-1
Thallium;Determination of lead content;Dithizone extraction photometric methodGB/T 2592.6-19811982-3-1
Thallium;Determination of cadmium content;Dithizone extraction photometric methodGB/T 2592.5-19811982-3-1
Thallium;Determination of copper content;Neocuproine-chloroform extraction photometric methodGB/T 2592.1-19811982-3-1
Thallium;Determination of zinc content;Dithizone extraction photometric methodGB/T 2592.4-19811982-3-1
Thallium;Determination of indium content;Crystal violet extraction photometric methodGB/T 2592.8-19811982-3-1
Determination of antimony content in cadmium--Malachite green photometric methodGB/T 2134-19801981-10-1
Classification and technical requirements for antimonyGB/T 1599-19791980-8-1
Method for chemical analysis of platinum-rhodium alloysGB/T 1485-19791979-10-1
Method for chemical analysis of platinum-palladium-rhodium alloysGB/T 1488-19791979-10-1
Method for chemical analysis of platinum-ruthenium alloysGB/T 1486-19791979-10-1
Back
About Us Contact Us Payment
Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 Email: coc@codeofchina.com | Send me a messageQQ: 672269886
Copyright: Codeofchina Inc 2008-2020