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GB/T 223.89-2019 Iron, steel and alloy—Determination of tellurium content—Hydride generation-atomic fluorescence spectrometric method - 英文版 |
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GB/T 38441-2019 Pig iron and cast—Determination of chromium，copper，magnesium，manganese，molybdenum，nickel，phosphorus，tin，titanium，vanadium and silicon content—Inductively coupled plasma atomic emission spectrometric method - 英文版 |
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GB/T 32671.2-2019 Colloidal systems—Methods for zeta-potential determination—Part 2:Optical methods - 英文版 |
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GB/T 37619-2019 Corrosion of metals and alloys—Potentiostatic test and evaluation method for determination of susceptibility to grooving corrosion of high frequency electric resistance welded steel pipes - 英文版 |
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GB/T 24583.7-2019 Vanadium-nitrogen—Determination of oxygen content—Infrared absorption method - 英文版 |
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GB/T 24583.5-2019 ：Vanadium-nitrogen—Determination of phosphorus content—Bismuth molybdenum blue spectrophotometric method - 英文版 |
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GB/T 24583.4-2019 Vanadium-nitrogen—Determination of carbon content—Infrared absorption method - 英文版 |
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GB/T 24583.3-2019 Vanadium-nitrogen—Determination of nitrogen content—Distillation-neutralization titration method - 英文版 |
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GB/T 24583.2-2019 Vanadium-nitrogen—Determination of nitrogen content—Thermal conductimetric method after fusion in a current of inert gas - 英文版 |
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GB/T 24583.1-2019 Vanadium-nitrogen—Determination of vanadium content—Ammonium ferrous sulfate titration method - 英文版 |
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GB/T 23524-2019 Method for chemical analysis of petrochemical spent platinum catalyst—Determination of platinum—Inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 20975.31-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 31：Determination of phosphorus content—Molybdenum blue spectrophotometry - 英文版 |
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GB/T 20975.30-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 30：Determination of hydrogen content—Heating extraction-thermal conductivity method - 英文版 |
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GB/T 20975.29-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 29:Determination of molybdenum content—Thiocyanate spectrophotometry - 英文版 |
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GB/T 20975.28-2019 Methods for chemical analysis of aluminium and aluminium alloys—Part 28:Determination of cobalt content—Flame atomic absorption spectrometry - 英文版 |
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GB/T 13747.5-2019 Methods for chemical analysis of zirconium and zirconium alloys—Part 5：Determination of aluminium content—Chronic azurol-S-tetradrcylpyridine chloride spectrophotometry - 英文版 |
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GB/T 13477.13-2019 Test method for building sealants－Part 13：Determination of adhesion/cohesion properties at variable temperatures - 英文版 |
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GB/T 12688.5-2019 Test method of styrene for industrial use—Part 5：Determination of the content of total aldehydes—Titrimetric method - 英文版 |
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GB/T 12688.1-2019 Test method of styrene for industrial use—Part 1：Determination of purity and hydrocarbon impurities—Gas chromatography - 英文版 |
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GB/T 7739.13-2019 Methods for chemical analysis of gold concentrates—Part 13: Determination of lead， zinc， bismuth， cadmium， chromium， arsenic and mercury contents—Inductively coupled plasma atomic emission spectrometry - 英文版 |
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GB/T 4698.21-2019 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 21: Determination of manganese, chromium, nickel, aluminum, molybdenum, tin, vanadium, yttrium, copper and zirconium content—Atomic emission spectrometry - 英文版 |
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GB/T 4698.17-2019 Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 17:Determination of magnesium content—Flame atomic absorption spectrometry - 英文版 |
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GB/T 4333.7-2019 Ferrosilicon—Determination of sulfur content—Infrared absorption method and chromatographic separation-barium sulfate gravimetric method - 英文版 |
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GB/T 4333.6-2019 Ferrosilicon—Determination of chromium content—Diphenylcarbazide spectrophotometric method - 英文版 |
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GB/T 4333.10-2019 Ferrosilicon—Determination of carbon content—Infrared absorption method - 英文版 |
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GB/T 3654.3-2019 Ferroniobium—Determination of silicon content—Gravimetric method - 英文版 |
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GB/T 223.88-2019 Iron, steel and alloy—Determination of calcium and magnesium contents—Inductively coupled plasma atomic emission spectrometric method - 英文版 |
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GB/T 37428-2019 Methods of determination and calculation of thermal balance in electric arc furnace - 英文版 |
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GB/T 1634.1-2019 Plastics—Determination of temperature of deflection under load—Part 1:General test method - 英文版 |
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GB/T 37361-2019 Determination of the film thickness—Ultrasonic thickness gauge method - 英文版 |
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