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YS/T 746.5-2010: Methods for chemical analysis of lead-free tin-based solders. Part 5: Determination of bismuth content. Flame atomic absorption spectrometric methods and EDTA titrimetric methods
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Methods for chemical analysis of lead-free tin-based solders. Part 5: Determination of bismuth content. Flame atomic absorption spectrometric methods and EDTA titrimetric methods
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YS/T 746.5-2010
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Basic data | Standard ID | YS/T 746.5-2010 (YS/T746.5-2010) | | Description (Translated English) | Methods for chemical analysis of lead-free tin-based solders. Part 5: Determination of bismuth content. Flame atomic absorption spectrometric methods and EDTA titrimetric methods | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.040.30 | | Word Count Estimation | 9,979 | | 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 bismuth-based solder lead-free solder method for determination. This standard applies to lead-free tin-based solder in the bismuth content. Measuring range: 0. 0050% ~ 5. 00%. | YS/T 746.5-2010: Methods for chemical analysis of lead-free tin-based solders. Part 5: Determination of bismuth content. Flame atomic absorption spectrometric methods and EDTA titrimetric methods
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Methods for chemical analysis of lead-free tin-based solders.Part 5. Determination of bismuth content.Flame atomic absorption spectrometric methods and EDTA titrimetric methods
ICS 77.040.30
H13
People's Republic of China Nonferrous Metals Industry Standard
No Tin Lead-based solder chemical analysis
Part 5. Determination of bismuth content
Flame atomic absorption spectrometry and titration Na2EDTA
Part 5Determinationofbismuthcontent-
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 is Part 5.
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.
Participated in the drafting of this section. Guangxi China Tin Group Co., Ltd.
The main drafters of this section. Chen Lin, Su Xiaomei, Miriam, Su Yan, Wang Lixin, Yu Hongping, who Ting, Liming Feng, Wang Wenjun, Chen Zhiwei, Yu Huan,
Jo Tan Ming Liang Bowen.
No Tin Lead-based solder chemical analysis
Part 5. Determination of bismuth content
Flame atomic absorption spectrometry and titration Na2EDTA
Method 1 flame atomic absorption spectrometry
1 Scope
YS/T 746 This section specifies the determination method based solder lead-free solder of bismuth content.
This section applies to the determination of lead-free tin-based solders in the bismuth content. Measurement range. 0.0050% to 5.00%.
2 Method summary
Samples with hydrochloric acid - hydrogen peroxide dissolved in the presence of sulfuric acid, hydrochloric acid - low hydrobromide exclude tin, antimony, in an acidic medium, in the atom
Absorption Spectrometer at a wavelength of 223.1nm, with flame atomization, air - acetylene flame measured absorbance.
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 hydrochloride (ρ1.19g/mL).
Nitrate 3.2 (ρ1.42g/mL).
3.3 nitric acid (11).
3.4 mixed acid. 300mL of hydrochloric acid (3.1) and 100mL nitric acid (3.2) and mixed.
3.5 sulfate (ρ1.84g/mL).
3.6 sulfate (11).
3.7 hydrobromide (ρ1.49g/mL).
3.8 hydrobromide (11).
HCl 3.9 - hydrobromic acid (11).
3.10 Hydrogen peroxide (30%).
3.11 isopropyl ether (CP).
3.12 Bismuth standard stock solution. Weigh 1.0000g of bismuth (≥99.99%) in 250mL beaker, add 50mL of nitric acid (3.3), cover
Table pan, heat gently to dissolve, cooled to room temperature and transferred to 1000mL volumetric flask, dilute with water to volume, and mix. This solution 1mL
Bismuth-containing 1mg.
3.13 Bismuth standard solution. Pipette 50.00mL bismuth standard stock solution (3.12) in 500mL flask, add 50mL mixed acid
(3.4), dilute to the mark and mix. This solution 1mL containing 100μg bismuth.
4 Instrument
Atomic absorption spectrometer, with a bismuth hollow cathode lamp.
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