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SN/T 4240-2015: Electrical and electronic products. Determination of lead and cadmium in metal parts surface nickel-plated. Inductively coupled plasma mass spectrometry
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 4240-2015 | English | 169 |
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Electrical and electronic products. Determination of lead and cadmium in metal parts surface nickel-plated. Inductively coupled plasma mass spectrometry
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SN/T 4240-2015
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Basic data | Standard ID | SN/T 4240-2015 (SN/T4240-2015) | | Description (Translated English) | Electrical and electronic products. Determination of lead and cadmium in metal parts surface nickel-plated. Inductively coupled plasma mass spectrometry | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | L04 | | Classification of International Standard | 31.020 | | Word Count Estimation | 7,749 | | Date of Issue | 2015-05-26 | | Date of Implementation | 2016-01-01 | | Quoted Standard | GB/T 6682 | | Regulation (derived from) | State Quality-Inspection-accreditation [2015] No.224 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the inductively coupled plasma Electronic and Electrical Products metal parts nickel-plated layer of lead and cadmium content of mass spectrometry methods. This standard applies to electrical and electronic products metal parts nickel-plated layer of lead, cadmium determination, other base metals nickel plating layer can also refer to use. | SN/T 4240-2015: Electrical and electronic products. Determination of lead and cadmium in metal parts surface nickel-plated. Inductively coupled plasma mass spectrometry
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Electrical and electronic products.Determination of lead and cadmium in metal parts surface nickel-plated.Inductively coupled plasma mass spectrometry
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Electrical and electronic products, metal parts, surfaces
Determination of lead and cadmium in nickel plating
Inductively coupled plasma mass spectrometry
Released on.2015-05-26
2016-01-01 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Entry and exit inspection and quarantine
Industry Standard
Electrical and electronic products, metal parts, surfaces
Determination of lead and cadmium in nickel plating
Inductively coupled plasma mass spectrometry
China Standard Press Publishing
First edition in January.2016
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Ningbo Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Nanjing Entry-Exit Inspection and Quarantine
Bureau, Guangdong Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this standard. Cao Guozhou, Liu Zaimei, Zhu Xiaoyan, He Chonghui, Xiao Qian.
Electrical and electronic products, metal parts, surfaces
Determination of lead and cadmium in nickel plating
Inductively coupled plasma mass spectrometry
1 Scope
This standard specifies the method for the determination of lead and cadmium in the nickel-plated layer on the surface of metal parts of electronic and electrical products by inductively coupled plasma mass spectrometry.
This standard is applicable to the determination of lead and cadmium in the nickel plating on the surface of metal parts of electrical and electronic products.
use.
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 edition (including all amendments) applies to this document.
GB/T 6682 Analytical laboratory water specifications and test methods
3 Method summary
Nickel, lead and cadmium in the coating react with dilute hydrochloric acid to form hydrogen, and the degree of deplating is controlled by observing the generated bubbles, and then the inductor is used.
The content of lead and cadmium in the deplating solution was determined by coupled plasma mass spectrometer (ICP-MS) internal standard method. According to the quality of deplating and the concentration of lead and cadmium in the deplating solution,
The content of lead and cadmium in the coating was calculated.
4 reagents
4.1 Water, the first grade water specified in GB/T 6682.
4.2 Hydrochloric acid. excellent grade pure.
4.3 Nitric acid. excellent grade pure.
4.4 Anhydrous ethanol. excellent grade pure.
4.5 Hydrochloric acid solution (1 9).
4.6 Hydrochloric acid solution (2 98).
4.7 Nitric acid solution (5 95).
4.8 Lead, cadmium, tellurium and indium standard stock solution. 1000μg/mL. Commercially available certified standard solutions.
4.9 Lead and cadmium mixed standard solution 10μg/mL. Dilute lead and cadmium standard stock solution (4.8) to 1.0μg/mL with hydrochloric acid solution (4.6).
4.10 Indium and cesium mixed internal standard solution 1.0 μg/mL. The indium and hydrazine standard stock solution (4.8) was diluted stepwise with a hydrochloric acid solution (4.6) to 1.0 μg/mL.
5 Instruments and equipment
5.1 Inductively Coupled Plasma Mass Spectrometer (ICP-MS).
5.2 Electronic balance. Sensing amount 0.01mg.
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