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	GB/T 7739.14-2019 Methods for chemical analysis of gold concentrates—Part 14: Determination of thallium content—Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry - 英文版
	GB/T 6730.80-2019 Iron ores—Determination of mercury content—Cold atomic absorption spectrometric method - 英文版
	GB/T 6730.79-2019 Iron ores—Determination of cadmium content—Hydride generation-atomic fluorescence spectrometric method - 英文版
	GB/T 6730.78-2019 Iron ores—Determination of cadmium content—Graphite furnace atomic absorption spectrophotometric method - 英文版
	GB/T 6730.77-201 Iron ores—Determination of arsenic content—Hydride generation-atomic fluorescence spectrometric method - 英文版
	GB/T 6730.56-2019 Iron ores—Determination of aluminum content—Flame atomic absorption spectrometric method - 英文版
	GB/T 4333.1-2019 Ferrosilicon—Determination of silicon content—Perchloric acid dehydration gravimetric method and potassium fluosilicate volumetric method - 英文版
	GB/T 3781.5-2019 Acetylene black—Part 5:Determination of grit content - 英文版
	GB/T 223.89-2019 Iron, steel and alloy—Determination of tellurium content—Hydride generation-atomic fluorescence spectrometric method - 英文版
	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
	GB/T 32671.2-2019 Colloidal systems—Methods for zeta-potential determination—Part 2:Optical methods - 英文版
	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
	GB/T 37617-2019 Test methods for Zeta potential of nanofiltration membrane surface—Streaming potential measurement - 英文版
	GB/T 37505-2019 Surface active agents—Determination of quinoline content in dispersing agents - 英文版
	GB/T 37498-2019 Rubber,raw natural—Determination of the gel content of technically specified rubber (TSR) - 英文版
	GB/T 24583.8-2019 Vanadium-nitrogen—Determination of silicon, manganese, phosphorus, aluminum content—Inductively coupled plasma atomic emission - 英文版
	GB/T 24583.7-2019 Vanadium-nitrogen—Determination of oxygen content—Infrared absorption method - 英文版
	GB/T 24583.5-2019 ：Vanadium-nitrogen—Determination of phosphorus content—Bismuth molybdenum blue spectrophotometric method - 英文版
	GB/T 24583.4-2019 Vanadium-nitrogen—Determination of carbon content—Infrared absorption method - 英文版
	GB/T 24583.3-2019 Vanadium-nitrogen—Determination of nitrogen content—Distillation-neutralization titration method - 英文版
	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
	GB/T 24583.1-2019 Vanadium-nitrogen—Determination of vanadium content—Ammonium ferrous sulfate titration method - 英文版
	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
	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
	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
	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
	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
	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
	GB/T 8293-2019 Rubber latex, natural concentrate—Determination of sludge content - 英文版
	GB/T 8086-2019 Rubber, raw natural—Determination of dirt content - 英文版

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