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YS/T 746.8-2010: Methods for chemical analysis of lead-free tin-based solders. Part 8: Determination of arsenic content. Molybdenum antimony arsenate blue spectrometric method
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| YS/T 746.8-2010 | English | 159 |
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Methods for chemical analysis of lead-free tin-based solders. Part 8: Determination of arsenic content. Molybdenum antimony arsenate blue spectrometric method
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YS/T 746.8-2010
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Basic data | Standard ID | YS/T 746.8-2010 (YS/T746.8-2010) | | Description (Translated English) | Methods for chemical analysis of lead-free tin-based solders. Part 8: Determination of arsenic content. Molybdenum antimony arsenate blue spectrometric method | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.040.30 | | Word Count Estimation | 6,658 | | Date of Issue | 2010-11-22 | | Date of Implementation | 2011-03-01 | | Regulation (derived from) | MIIT (2010) No. 126 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the base solder lead-free solder method for determination of arsenic. This standard applies to lead-free tin-based solder in the arsenic content. Measuring range: 0. 0050% 0. 1000%. | YS/T 746.8-2010: Methods for chemical analysis of lead-free tin-based solders. Part 8: Determination of arsenic content. Molybdenum antimony arsenate blue spectrometric method
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Methods for chemical analysis of lead-free tin-based solders.Part 8. Determination of arsenic content.Molybdenum antimony arsenate blue spectrometric method
ICS 77.040.30
H13
People's Republic of China Nonferrous Metals Industry Standard
No Tin Lead-based solder chemical analysis
Part 8. Determination of arsenic content
Arsenic and antimony molybdenum blue spectrophotometric method
Part 8. Determinationofarseniccontent-
Issued on. 2010-11-22
2011-03-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 746 "non-Pb-based solder chemical analysis method" is divided into 17 parts.
--- Part 1 Determination of tin content Coke sexual gallic acid Covering - lead nitrate titration method
--- Part 2 of silver content - Flame atomic absorption spectrometry and potentiometric titration with potassium thiocyanate
--- Part 3 of copper content - Flame atomic absorption spectrometry and titration with sodium thiosulfate
--- Part 4 of lead content - Flame Atomic Absorption Spectrometry
--- Part 5 of bismuth content - Flame atomic absorption spectrometry and titration Na2EDTA
--- Part 6 of antimony content - Flame Atomic Absorption Spectrometry
--- Part 7 Determination of iron content by flame atomic absorption spectrometry
--- Part 8 of arsenic content of arsenic, antimony molybdenum blue spectrophotometric method
--- Part 9 Determination of zinc content by flame atomic absorption spectrometry and titration Na2EDTA
Part 10 Determination of aluminum content --- first electrothermal atomic absorption spectrometry
--- Part 11 of cadmium content - Flame Atomic Absorption Spectrometry
--- Part 12 Determination of indium titration Na2EDTA
--- Part 13 Determination of nickel content by flame atomic absorption spectrometry
--- Part 14 Determination of the phosphorus content of the first crystal violet - heteropoly acid phosphovanadomolybdate spectrophotometry
--- Part 15 Determination of germanium content salicylfluorone spectrophotometry
--- Part 16 Determination of rare earth Arsenazo Ⅲ spectrophotometry
--- Part 17 silver, copper, lead, bismuth, antimony, iron, arsenic, zinc, aluminum, cadmium, nickel, indium content was measured by inductively coupled plasma optical emission
Spectroscopy
This section section 8.
This section is in accordance with GB/T 1.1-2009 given rules drafted.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is drafted. Yunnan Tin Group Co., Ltd.
This section participating units. Red Exit Inspection and Quarantine, indium Yunnan Hualian Zinc Limited.
The main drafters of this section. Solutions Huifang, Jiang Village stretch, Wang Li Xian, Wang Juping of Yang Yun, Ren Yong Park.
No Tin Lead-based solder chemical analysis
Part 8. Determination of arsenic content
Arsenic and antimony molybdenum blue spectrophotometric method
1 Scope
YS/T 746 This standard specifies the method for determination of lead-free tin-based solders in arsenic content.
This standard applies to the determination of lead-free tin-based solders in arsenic content. Measurement range. 0.0050% - 0.1000%.
2 Method summary
Samples with sulfuric acid, hydrogen peroxide dissolved in dilute sulfuric acid medium with stannous chloride, zinc metal arsenic is reduced to arsine gas, gas escape
Body with iodine absorbed and oxidized to pentavalent. Arsenic and antimony, arsenic and antimony paramolybdate generated blue molybdenum blue complex in sulfuric acid medium, for spectrophotometric
Meter measuring the absorbance at 700nm.
3 Reagents
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity.
3.1 arsenic-free zinc particles (φ3 ~ φ7mm).
3.2 sulfate (ρ1.84).
3.3 Hydrogen peroxide (30%).
3.4 sulfate (11).
3.5 sulfate (16).
3.6 hydrochloride (ρ19g/mL).
3.7 hydrochloride (11).
3.8 tartaric acid solution (300g/L).
3.9 stannous chloride solution (400g/L). Weigh 40g of stannous chloride (SnCl2 · 2H2O) in 200mL beaker, add 80mL hydrochloric acid
(3.6), cover the dish table, micro heat of solution is completely clear, and cooled to room temperature, hydrochloric acid (3.7) diluted to 100mL, and mix.
3.10 absorption solution. Weigh 1g and 5g potassium iodine tablets mixed, dissolved in water and diluted to 500mL.
3.11 ascorbic acid solution (30g/L). with the preparation.
3.12 ammonium molybdate solution (40g/L).
3.13 antimony potassium tartrate solution (4.5g/L).
3.14 Sodium hydroxide solution (200g/L).
3.15 color solution. Take 50mL sulfuric acid (3.5), 25mL ascorbic acid solution, 20mL ammonium molybdate solution, 5mL antimony potassium tartrate solution
Liquid mix. The time is now equipped with.
3.16 arsenic standard stock solution. Weigh 0.1320g pre-drying to a constant weight of arsenic trioxide (reference reagent) at 105 ℃ to 150mL
Beaker, sodium hydroxide solution and 10mL dissolved, 5mL of sulfuric acid (3.4), 0.5mL of hydrogen peroxide heated to boiling for 10min, cooled to
Room temperature. Moved into 1000mL volumetric flask, dilute with water to volume, and mix. This solution 1mL arsenic 100μg.
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