YS/T 1075.4-2015 (YST1075.4-2015)

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YS/T 1075.4-2015	English	249	Add to Cart	3 days [Need to translate]	Methods for chemical analysis of vanadium-aluminium and molybdenum-aluminium master alloys. Part 4: Determination of vanadium content. Inductively oupled plasma atomic emission spectrometry and ammonium ferrous sulfate titration	YS/T 1075.4-2015		YS/T 1075.4-2015

YS/T 1075.4-2015
(Vanadium aluminum, molybdenum intermediate aluminum alloys - Part 4. Determination of vanadium content Inductively coupled plasma atomic emission spectrometry and ferrous ammonium sulfate titration)
ICS 77.120.99
H14
People's Republic of China Nonferrous Metals Industry Standard
Aluminum vanadium, molybdenum intermediate aluminum alloys -
Part 4. Determination of vanadium content
Inductively coupled plasma atomic emission spectrometry and
Ferrous ammonium sulfate titration
Part 4. Determinationofvanadiumcontent-
Issued on. 2015-10-01 2015-04-30 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 4.
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. NIN, big Chengde Vanadium Industry Co., Ltd., Guangzhou Nonferrous Metal Research Institute, Baoji Titanium collection
Group Co., Ltd. Shangluo Amano high-tech materials, high-tech Donggang East Metal Materials Co., Beijing Nonferrous Metal Research Institute,
Chemical analysis center, Central South University.
The main drafters of this section. Sunbao Lian, Lu Ni, Wangjin Lei, Li Bo, Liu Leilei, Li Jianxin, Rowling, Wang Xiaoyan, Feng Yanping, Xiong Xiaoyan,
Zhang Danli, Lei Xiaoyan, Zhang Diankai, Deng Feiyue, Daniel Chan, Li Jian, Li sweet, Hou Liwei, Maili Bi, Ma Xiaohong, Lizhi De, Zoude Ling, Lee Man Chi,
Xujie Yu, Yuan Ya red, Xue Liying, ADMINISTRATION AND TECHNIQUE.
Aluminum vanadium, molybdenum intermediate aluminum alloys -
Part 4. Determination of vanadium content
Inductively coupled plasma atomic emission spectrometry and
Ferrous ammonium sulfate titration
1 Scope
YS/T 1075 This section specifies the method for determination of vanadium aluminum master alloys of vanadium content.
This section applies to aluminum vanadium, molybdenum, aluminum master alloys of vanadium contents. The method of measuring a range of 0.010% to 0.30%, the second test method
Set in the range of 40.00% ~ 90.00%.
2 a method of inductively coupled plasma atomic emission spectrometry
2.1 Method summary
The sample was dissolved in nitric acid, hydrofluoric acid, hydrochloric acid. Inductively coupled plasma emission spectrometer to measure the recommended analytical line wavelength
The emission intensity of the test solution of vanadium, vanadium concentration obtained from the working curve method, the mass fraction shows the measurement results.
2.2 Reagents
2.2.1 nitric acid (11).
2.2.2 hydrofluoric acid (ρ = 1.15g/mL).
2.2.3 hydrochloric acid (ρ = 1.19g/mL).
2.2.4 pure molybdenum powder (wmo < 0.001%).
2.2.5 aluminum (wAl < 0.001%).
2.2.6 Vanadium standard stock solution. Weigh 1.7850g pre-dried at 105 ℃ vanadium pentoxide (≥99.99%) placed in 250mL burn
Cup, 50mL was added sodium hydroxide solution (10g/L), dissolved by heating, and then acidified with sulfuric acid (11) in excess 10mL, transferred to
1000mL volumetric flask, dilute with water to volume, and mix. This solution 1mL containing 1.0mg vanadium.
2.2.7 Vanadium standard solution. Pipette 10.00mL vanadium standard stock solution (2.2.6) in 100mL volumetric flask, dil