GB/T 39560.4-2021 PDF English
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Determination of certain substances in electrical and electronic products - Part 4: Mercury in polymers, metals and electronics by CV-AAS, CV-AFS, ICP-OES and ICP-MS
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GB/T 39560.4-2021: PDF in English (GBT 39560.4-2021) GB/T 39560.4-2021
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 31.020; 71.040.50
L 10
GB/T 39560.4-2021 / IEC 62321-4:2013
Determination of Certain Substances in Electrical and
Electronic Products – Part 4: Mercury in Polymers, Metals
and Electronics by CV-AAS, CV-AFS, ICP-OES and ICP-MS
(IEC 62321-4:2013, Determination of Certain Substances in Electrotechnical Products
– Part 4: Mercury in Polymers, Metals
and Electronics by CV-AAS, CV-AFS, ICP-OES and ICP-MS, IDT)
ISSUED ON: OCTOBER 11, 2021
IMPLEMENTED ON: MAY 1, 2022
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 6
3 Terms, Definitions and Abbreviations ... 6
4 Reagent and Materials ... 8
5 Apparatus ... 10
6 Sampling and Test Portion ... 12
7 Procedure ... 12
8 Calibration ... 14
9 Calculation ... 16
10 Precision ... 17
11 Quality Assurance and Control ... 18
Annex A (Informative) Practical Application of Determination of Mercury in Polymers,
Metals and Electronics by CV-AAS, AFS, ICP-OES and ICP-MS ... 21
Annex B (Informative) Results of International Interlaboratory Study Nos. 2 (IIS2) and
4A (IIS 4A) ... 28
Bibliography ... 30
Foreword
Currently, GB/T 39560 Determination of Certain Substances in Electrical and Electronic
Products can be divided into the following parts:
--- Part 1: Introduction and Overview;
--- Part 2: Disassembly, Disjointment and Mechanical Sample Preparation;
--- Part 3-1: Screening Lead, Mercury, Cadmium, Total Chromium and Total Bromine by
X-Ray Fluorescence Spectrometry;
--- Part 4: Mercury in Polymers, Metals and Electronics by CV-AAS, CV-AFS, ICP-OES
and ICP-MS;
--- Part 5: Cadmium, Lead and Chromium in Polymers and Electronics and Cadmium and
Lead in Metals by AAS, AFS, ICP-OES and ICP-MS;
--- Part 6: Polybrominated Biphenyls and Polybrominated Diphenyl Ethers in Polymers by
Gas Chromatography-Mass Spectrometry (GC-MS);
--- Part 7-1: Hexavalent Chromium - Presence of Hexavalent Chromium [Cr (VI)] in
Colorless and Colored Corrosion-Protected Coatings on Metals by the Colorimetric
Method;
--- Part 7-2: Hexavalent Chrome - Determination of Hexavalent Chrome [Cr (VI)] in
Polymers and Electronics by the Colorimetric Method;
--- Part 8: Phthalates in Polymers by Gas Chromatography-Mass Spectrometry (GC-MS),
Gas Chromatography-Mass Spectrometry Using a Pyrolyzer/Thermaldesorption
Accessory (Py/TD-GC-MS).
This Part is Part 4 of GB/T 39560.
This Part was drafted as per the rules specified in GB/T 1.1-2009.
This Part used the translation method to equivalently adopt IEC 62321-4:2013 Determination
of Certain Substances in Electrotechnical Products – Part 4: Mercury in Polymers, Metals and
Electronics by CV-AAS, CV-AFS, ICP-OES and ICP-MS.
This Part adopts the amendments of IEC 62321-4:2013/AMD1:2017, and the clauses involved
in these amendments have been marked by vertical double lines (‖) in their outer margins.
The Chinese documents that have a consistent correspondence with the international documents
normatively cited in this Part are as follows:
--- GB/T 39560.1-2020 Determination of Certain Substances in Electrical and Electronic
Products - Part 1: Introduction and Overview (IEC 62321-1:2013, IDT);
--- GB/T 39560.2-2020 Determination of Certain Substances in Electrical and Electronic
Products - Part 2: Disassembly, Disjointment and Mechanical Sample Preparation (IEC
62321-2:2013, IDT);
--- GB/T 39560.301-2020 Determination of Certain Substances in Electrical and Electronic
Products - Part 3-1: Screening Lead, Mercury, Cadmium, Total Chromium and Total
Bromine by X-Ray Fluorescence Spectrometry (IEC 62321-3-1:2013, IDT);
--- GB/T 6682-2008 Water for Analytical Laboratory Use - Specification and Test Methods
(ISO 3696:1987, MOD).
This Part made the following editorial modification:
--- In order to be consistent with the existing Chinese standards, change the standard name into
Determination of Certain Substances in Electrical and Electronic Products – Part 4: Mercury
in Polymers, Metals and Electronics by CV-AAS, CV-AFS, ICP-OES and ICP-MS.
This Part was proposed by and under the jurisdiction of National Technical Committee on
Environment for Electrical and Electronic Products and Systems of Standardization
Administration of China (SAC/TC 297).
Drafting organizations of this Part: China Electronics Standardization Institute; Shenzhen Saixi
Information Technology Co., Ltd.; Lanzhou Beike Weituo Technology Co., Ltd.; Centre Testing
International Group Co., Ltd.; Guangdong Midea Air-Conditioning Equipment Co., Ltd.;
Lanzhou 3D Big Data Standardization Research Institute Co., Ltd.; China Household Electric
Appliance Research Institute; Mechanical and Electrical Products and Vehicle Testing Center
of WuXI Customs; Shimadzu (China) Co., Ltd.; Thermo Fisher Scientific (China) Co., Ltd.;
Ningbo Academy of Science & Technology for Inspection & Quarantine; China Academy of
Information and Communications Technology; Zhongxing Telecommunication Equipment
Corporation; the Fifth Electronics Research Institute of the Ministry of Industry and
Information Technology; Guangzhou Customs District Technology Center; Vkan Certification
& Testing Co., Ltd.; and Testing and Technology Center for Industrial Products of Shenzhen
Customs.
Chief drafting staffs of this Part: Cheng Tao, Gao Jian, Li Jichao, Zhang Junhua, Xing Weibing,
Cai Jin, Hu Shengwen, Chen Dongmei, Cao Yanxin, Wei Feng, Liu Dan, Wang Fei, Chen
Jianguo, Hao Xu, Wang Xian, Jiang Tao, Xiao Dahui, Zhu Jia, and Yu Shuyuan.
Determination of Certain Substances in Electrical and
Electronic Products – Part 4: Mercury in Polymers, Metals
and Electronics by CV-AAS, CV-AFS, ICP-OES and ICP-MS
WARNING – Persons using this Part should be familiar with normal laboratory practice.
This Part does not purport to address all of the safety problems, if any, associated with its
use. It is the responsibility of the user to establish appropriate safety and health practices
and to ensure compliance with any national regulatory conditions.
1 Scope
This Part of GB/T 39560 describes test methods for mercury in polymers, metals and electronics
by CV-AAS, CV-AFS, ICP-OES and ICP-MS.
This Part specifies the determination of the levels of mercury (Hg) contained in electrotechnical
products. These materials are polymers, metals and electronics (e.g., printed wiring boards,
fluorescent lamps, mercury switches). Batteries containing Hg should be handled as described
in [1]. The interlaboratory study has only evaluated these test methods for plastics, other matrices
were not covered.
This Part refers to the sample as the object to be processed and measured. What the sample is
or how to get to the sample is defined by the entity carrying out the tests. Further guidance on
obtaining representative samples from finished electronic products to be tested for levels of
regulated substances may be found in IEC 62321-2. It is noted that the selection and/or
determination of the sample may affect the interpretation of the test results.
This Part describes the use of four methods, namely CV-AAS (cold vapor atomic absorption
spectrometry), CV-AFS (cold vapor atomic fluorescence spectrometry) ICP-OES (inductively
coupled plasma optical emission spectrometry), and ICP-MS (inductively coupled plasma mass
spectrometry) as well as several procedures for preparing the sample solution from which the
most appropriate method of analysis can be selected by experts.
Analysis by CV-AAS, CV-AFS, ICP-OES and ICP-MS allows the determination of the target
element, mercury, with high precision (uncertainty in the low per cent range) and/or high
sensitivity (down to the μg/kg level). The test procedures described in this standard are intended
to provide the highest level of accuracy and precision for concentrations of mercury in the range
from 4 mg/kg ~ 1 000 mg/kg. The procedures are not limited for higher concentrations.
For direct analysis, using thermal decomposition-gold amalgamation in conjunction with CV-
AAS (TD(G)-AAS) can be also applied for mercury analysis without sample digestion,
although the detection limits are higher than other methods due to the reduced sample size.
2 Normative References
The following documents are essential to the application of this document. For the dated
documents, only the versions with the dates indicated are applicable to this document; for the
undated documents, only the latest version (including all the amendments) is applicable to this
document.
IEC 62321-1 Determination of Certain Substances in Electrotechnical Products – Part 1:
Introduction and Overview
IEC 62321-2 Determination of Certain Substances in Electrotechnical Products – Part 2:
Disassembly, Disjointment and Mechanical Sample Preparation
IEC 62321-3-1 Determination of Certain Substances in Electrotechnical Products – Part
3-1: Screening Test Methods – Screening of Electrotechnical Products for Lead, Mercury,
Cadmium, Total Chromium and Total Bromine Using X-ray Fluorescence Spectrometry
IEC 62554 Sample Preparation for Measurement of Mercury Level in Fluorescent Lamps
ISO 3696 Water for Analytical Laboratory Use – Specification and Test Methods
3 Terms, Definitions and Abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62321-1 as well as
the following, apply.
3.1.1 Accuracy
Closeness of agreement between a test result and an accepted reference value.
3.1.2 Blank calibration solution
Calibration solution without analyte.
3.1.3 Calibration standard
substance in solid or liquid form with known and stable concentration(s) of the analyte(s) of
interest used to establish instrument response (calibration curve) with respect to analyte(s)
concentration(s).
3.1.4 Calibration solution
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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