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YS/T 1601-2023 etermination of impurity content in hexachlorodisilane—Inductively coupled plasma mass spectrometry via email in business day valid
YS/T 1602-2023 Molybdenum enrichment via email in business day valid
YS/T 1603.1-2023 Methods for chemical analysis of tungsten-based high specific gravity alloys Part 1: Determination of tungsten content Cinchon gravimetric method via email in business day valid
YS/T 1603.2-2023 Methods for chemical analysis of tungsten-based high specific gravity alloys Part 2: Determination of iron, nickel and copper contents by inductively coupled plasma atomic emission spectrometry via email in business day valid
YS/T 1603.3-2023 Methods for chemical analysis of tungsten-based high specific gravity alloys Part 3: Determination of aluminum, magnesium and calcium contents by inductively coupled plasma mass spectrometry via email in business day valid
YS/T 1604-2023 Methods for chemical analysis of ammonium molybdate— Determination of molybdenum content— Lead molybdate gravimetry via email in business day valid
YS/T 1605.1-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 1: Determination of molybdenum content— Lead molybdate gravimetric method via email in business day valid
YS/T 1605.10-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 10：Determination of silicon content— Molybdenum blue spectrophotometry via email in business day valid
YS/T 1605.11-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 11: Determination of tungsten content— Inductively coupled plasma atomic emission spectrometry via email in business day valid
YS/T 1605.12-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 12:Determination of carbon and sulfur contents — High frequency combustion infrared absorption method via email in business day valid
YS/T 1605.2-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 2: Determination of ammonia insoluble molybdenum content— Thiocyanate spectrophotometry via email in business day valid
YS/T 1605.3-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 3: Determination of bismuth content— Flame atomic absorption spectrometry and atomic fluorescence spectrometry via email in business day valid
YS/T 1605.4-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 4: Determination of tin content— Atomic fluorescence spectrometry via email in business day valid
YS/T 1605.5-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 5: Determination of antimony content— Atomic fluorescence spectrometry via email in business day valid
YS/T 1605.6-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 6: Determination of lead and copper contents— Flame atomic absorption spectrometry via email in business day valid
YS/T 1605.7-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 7: Determination of potassium content— Flame atomic absorption spectroscopy via email in business day valid
YS/T 1605.8-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 8: Determination of calcium and magnesuum contents— Flame atomic absorption spectrometry via email in business day valid
YS/T 1605.9-2023 Methods for chemical analysis of roasted molybdenum concentrate— Part 9：Determination of phosphorus content— Molybdenum blue spectrophotometry via email in business day valid
YS/T 1606-2023 via email in business day valid
YS/T 1607-2023 via email in business day valid
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