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GB/T 10574.8-2017: Methods for chemical analysis of tin-lead solders -- Part 8: Determination of zinc content -- Flame atomic absorption spectrometric method
Status: Valid GB/T 10574.8: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 10574.8-2017 | English | 109 |
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Methods for chemical analysis of tin-lead solders -- Part 8: Determination of zinc content -- Flame atomic absorption spectrometric method
| Valid |
GB/T 10574.8-2017
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| GB/T 10574.8-2003 | English | 239 |
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Methods for chemical analysis of tin-lead solders -- Determination of zine content
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GB/T 10574.8-2003
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| GB/T 10574.8-1989 | English | 199 |
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Tin-lead solders--Determination of silver content--Flame atomic absorption spectrophotometric method
| Obsolete |
GB/T 10574.8-1989
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PDF similar to GB/T 10574.8-2017
Basic data | Standard ID | GB/T 10574.8-2017 (GB/T10574.8-2017) | | Description (Translated English) | Methods for chemical analysis of tin-lead solders -- Part 8: Determination of zinc content -- Flame atomic absorption spectrometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.60 | | Word Count Estimation | 5,532 | | Date of Issue | 2017-10-14 | | Date of Implementation | 2018-05-01 | | Older Standard (superseded by this standard) | GB/T 10574.8-2003 | | Quoted Standard | GB/T 8012 | | Regulation (derived from) | National Standard Announcement 2017 No. 26 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the method for determining the amount of zinc in tin-lead solder. This standard applies to the determination of zinc in tin-lead solder. The measurement range is 0.00025% to 0.0050%. This standard is an arbitration analysis method. | GB/T 10574.8-2017: Methods for chemical analysis of tin-lead solders -- Part 8: Determination of zinc content -- Flame atomic absorption spectrometric method
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Methods for chemical analysis of tin-lead solders.Part 8. Determination of zinc content.Flame atomic absorption spectrometric method
ICS 77.120.60
H13
National Standards of People's Republic of China
Replacing GB/T 10574.8-2003
Tin-lead solder chemical analysis method
Part 8. Determination of zinc content
Flame Atomic Absorption Spectrometry
Part 8. Determinationofzinccontent-
Published on October 10,.2017
2018-05-01 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration released
Foreword
GB/T 10574 "Chemical analysis method for tin-lead solders" is divided into 14 parts.
--- Part 1. Determination of tin content Potassium iodate titration;
--- Part 2. Determination of barium content - Malachite green spectrophotometric method and potassium bromate titration method;
--- Part 3. Determination of helium content by flame atomic absorption spectrometry;
--- Part 4. Determination of iron content 1,10-Phenanthroline spectrophotometric method;
Part 5 . Determination of arsenic content ; Arsenic molybdenum blue spectrophotometric method ;
--- Part 6 . Determination of copper content Flame atomic absorption spectrometry ;
--- Part 7. Determination of silver content Flame atomic absorption spectrometry and potassium thiocyanate potentiometric titration;
--- Part 8. Determination of zinc content Flame atomic absorption spectrometric method;
--- Part 9 . Determination of aluminium content by electrothermal atomic absorption spectrometry ;
Part 10 . Determination of cadmium content Flame atomic absorption spectrometry and Na2EDTA titration ;
Part 11 . Determination of phosphorus content Crystal violet - phosphorus vanadium molybdenum heteropolyacid spectrophotometric method ;
--- Part 12. Determination of sulfur content - High-frequency combustion infrared absorption spectrometry;
---Part 13. Determination of the amounts of ruthenium, rhodium, iron, arsenic, copper, silver, zinc, aluminum, cadmium, phosphorus, and gold Inductively coupled plasma atomic emission
Spectral method;
---Part 14. Determination of tin, lead, antimony, bismuth, silver, copper, zinc, cadmium, and arsenic - Photoelectric emission spectroscopy.
This part is part 8 of GB/T 10574.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This part is an amendment to GB/T 10574.8-2003 "Determination of zinc in chemical analysis methods for tin-lead solders."
Compared with GB/T 10574.8-2003, the main technical changes are as follows.
--- Increased reference standards;
--- The lower limit of measurement was revised from 0.00003% to 0.00025%;
--- Zinc standard storage solution and zinc standard solution modified to hydrobromic acid - hydrochloric acid medium, and increase the acidity;
--- Removed the allowable error, increased repeatability and reproducibility content.
This part is under the jurisdiction of the National Non-ferrous Metals Standardization Technical Committee (SAC/TC243).
This section is responsible for drafting. Yunnan Tin Industry Co., Ltd.
Participated in the drafting of this section. Yunnan Tin Industry Co., Ltd., Lianyungang Exit Inspection and Quarantine Bureau, Beijing Mining and Metallurgy Research Institute, Kunming
Metallurgical Research Institute, China Nonferrous Metals Guilin Institute of Mineral Geology Co., Ltd., National Copper Lead and Zinc Quality Inspection Center.
The main drafters of this section. Yang Zihua, Xia Xinyuan, Tan Feng, Shen Cui, Fan Lixin, Zhou Dian, Yang Haojin, Jin Xiaofeng, Li Min, Liu Yingbo,
Li Rong and Sun Guojuan.
The previous versions of the standards replaced in this section were.
---GB/T 10574.10-1989;
--- GB/T 10574.8-2003.
Tin-lead solder chemical analysis method
Part 8. Determination of zinc content
Flame Atomic Absorption Spectrometry
1 Scope
This part of GB/T 10574 specifies the method for the determination of zinc in tin-lead solders.
This section applies to the determination of zinc in tin-lead solder. The measurement range is 0.00025% to 0.0050%.
This section is an arbitration analysis method.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 8012 cast tin-lead solder
3 Method summary
The sample was dissolved with hydrobromic acid, hydrochloric acid, and hydrogen peroxide. The hydrochloric acid-hydrobromic acid volatilized to remove tin and bismuth. In a dilute hydrochloric acid-hydrobromic acid medium,
The absorbance of zinc was measured with an air-acetylene flame at an atomic absorption spectrometer wavelength of 213.9 nm.
4 Reagents
Unless otherwise stated, only reagents identified as superior grade and first grade water were used in the analysis.
4.1 Hydrobromic acid (ρ=1.48 g/mL).
4.2 Hydrochloric acid (ρ=1.19 g/mL).
4.3 Hydrochloric acid (5 95).
4.4 Hydrogen peroxide (1 2), analytically pure.
4.5 Zinc standard storage solution. Weigh 0.1250g of metal zinc (wZn≥99.99%) into a.200mL PTFE beaker.
8.0mL of hydrobromic acid (4.1), 12.0mL of hydrochloric acid (4.2), heated to complete dissolution at low temperature, cooled to room temperature, transferred to a 500mL volumetric flask,
Dilute with water to the mark and mix. 1mL of this solution contains 250μg of zinc.
4.6 zinc standard solution. Pipette 5.00mL zinc standard stock solution (4.5) in 500mL volumetric flask, add 2.0mL hydrobromic acid (4.1),
4.0 mL of hydrochloric acid (4.2), dilute with water to the mark and mix. 1mL of this solution contains 2.5μg of zinc.
5 Instruments
Atomic absorption spectrometer with zinc hollow cathode lamp.
Under the best working conditions of the instrument, anyone who can achieve the following indicators can be used.
Sensitivity. The characteristic concentration of zinc should not be greater than 0.008 μg/mL.
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