YS/T 1075.8-2015 (YST1075.8-2015)

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YS/T 1075.8-2015	English	189	Add to Cart	3 days [Need to translate]	Methods for chemical analysis of vanadium-aluminium and molybdenum-aluminium master alloys - Part 8: Determination of molybdenum and aluminium contents - X-ray fluorescence method	YS/T 1075.8-2015	Valid	YS/T 1075.8-2015

YS/T 1075.8-2015
(Vanadium aluminum, molybdenum intermediate aluminum alloys - Part 8. molybdenum, aluminum X- determining the amount of fluorescence spectrometry)
ICS 77.120.99
H14
People's Republic of China Nonferrous Metals Industry Standard
Aluminum vanadium, molybdenum intermediate aluminum alloys -
Part 8. Molybdenum, Determination of aluminum content
X- Fluorescence Spectrometry
Part 8. Determinationofmolybdenumandaluminiumcontents-
Issued on. 2015-04-30
2015-10-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 1075 "aluminum vanadium, molybdenum intermediate aluminum alloy chemical analysis method" is divided into eight sections.
--- Part 1. Determination of iron content - 1,10-phenanthroline spectrophotometry;
--- Part 2. Determination of molybdenum content of lead molybdate gravimetric method;
--- Part 3. Determination of silicon content - Molybdenum blue spectrophotometric method;
--- Part 4. vanadium content - Inductively coupled plasma atomic emission spectrometry and ferrous ammonium sulfate titration;
--- Part 5. Determination of aluminum content EDTA titration;
--- Part 6. Determination of carbon content in the high-frequency combustion - infrared absorption method;
--- Part 7. Determination of the amount of oxygen in the inert gas fusion - infrared method;
--- Part 8. molybdenum, aluminum X- determining the amount of fluorescence spectroscopy.
This section YS/T 1075 Part 8.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) and focal points.
This section is drafted. Northwest Nonferrous Metal Research Institute, Guangzhou Nonferrous Metal Research Institute, Jinchuan Group Co., Ltd. Beilun immigration
Inspection and Quarantine Bureau, Jinduicheng Molybdenum Co., Ltd.
The main drafters of this section. Zhou Kai, Li Bo, Sunbao Lian, Xiaofei Yan, Zhao Zhihu, Dong Qi, Zhang Jianbo, Wang Guoliang, in Lily, Hu Jie,
Luo Jingsheng, Xie Mingming.
Aluminum vanadium, molybdenum intermediate aluminum alloys -
Part 8. Molybdenum, Determination of aluminum content
X- Fluorescence Spectrometry
1 Scope
YS/T 1075 This section provides molybdenum, molybdenum determination of aluminum content in aluminum alloys.
This section applies to aluminum and molybdenum in molybdenum, aluminum contents. Determination of the range in Table 1.
Table 1 measurement range of each component of the aluminum alloy of molybdenum
Element mass fraction /%
Mo 50.00 ~ 91.00
Al 9.00 ~ 50.00
2 Method summary
Samples with hydrofluoric acid, nitric acid dissolution. After drying by infrared light, with a suitable flux cast by a certain percentage to be suitable for X- ray fluorescence
Spectrometer measured sample fuse. Measuring the analyte sample sheet melting characteristic spectral lines in the selected instrument measurement conditions X-ray fluorescence intensity
Degrees, according to the calibration curve or equation is calculated to obtain a content of the analyte in the sample.
3 Reagents
3.1 lithium tetraborate. excellent pure, burning before use at 650 ℃ 4h.
3.2 bromide. Before using dried at 105 ℃ 2h.
3.3 lithium bromide solution. Weigh the appropriate amount of lithium bromide (3.2) to a concentration of 30mg/mL solution.
3.4 methane, argon mixed gas. volume fraction of 90% argon and volume fraction of 10% methane.
3.5 nitric acid (ρ = 1.42g/mL), pure class distinctions.
3.6 hydrofluoric acid (ρ = 1.15g/mL), pure class distinctions.
3.7 molybdenum trioxide (wMoO3≥99.99%). Before using dried at 105 ℃ 2h.
3.8 aluminum oxide (wAl2O3≥99.99%). Before using dried at 105 ℃ 2h.
4 Instrument
4.1 wavelength dispersive X- ray fluorescence spectroscopy.
4.2 FUSION dish. a platinum alloy (95% platinum 5% gold) is made, volume > 30mL.
4.3 mold dish. made of platinum alloy (95% platinum 5% gold).
4.4 automatic sample melting furnace. capable of heating to 1050 ℃, temperature control accuracy of ± 5 ℃.