电工产品中某些物质的测定.第2部分:拆卸、分离和机械样品制备

[中文适用范围]： IEC 62321-2 提供了从电气电子产品中获取样品并进行机械制备的策略。这些样品可用于分析测试，以确定 IEC 62321 系列其他部分中描述的测试方法中规定的某些物质的含量。不同地理区域对某些物质的限制有所不同，并且可以定期更新。本文件描述了在任何关注的物质确定之前获取和制备样品的通用过程。本文件不提供：有关可归类为电气电子产品的每种产品的全面指导；关于收集有关产品中某些物质的其他信息的指导，尽管所收集的信息与本文件中的采样策略有关；与电气电子产品和回收行业相关的拆卸和机械解体说明（例如含汞开关，如何处理 CRT 或电池的安全拆卸）。参见 IEC 62554 [1] 1，其中描述了含汞荧光灯的解体和机械样品制备；包装和包装材料的采样程序；测量某些物质含量的分析程序。本文件是测试标准中引用的“测试标准”的补充。本文件作为水平标准，其地位符合 IEC Guide 108 [2]。 [外文原描述]： IEC 62321-2:2021 provides strategies of sampling along with the mechanical preparation of samples from electrotechnical products. These samples can be used for analytical testing to determine the levels of certain substances as described in the test methods in other parts of the IEC 62321 series. Restrictions for substances will vary between geographic regions and can be updated on a regular basis. This document describes a generic process for obtaining and preparing samples prior to the determination of any substance of concern. This document does not provide: – full guidance on each and every product that could be classified as electrotechnical product. Since there is a huge variety of electrotechnical parts, with various structures and compositions, along with the continuous innovations in the industry, it is unrealistic to attempt to provide procedures for the disjointment of every type of part; – guidance regarding other routes to gather additional information on certain substances in a product, although the information collected has relevance to the sampling strategies in this document; – safe disassembly and mechanical disjointment instructions related to electrotechnical products (e.g. mercury-containing switches) and the recycling industry (e.g. how to handle CRTs or the safe removal of batteries). See IEC 62554 for the disjointment and mechanical sample preparation of mercury-containing fluorescent lamps; – sampling procedures for packaging and packaging materials; – analytical procedures to measure the levels of certain substances. This is covered by other standards (e.g. other parts of the IEC 62321 series), which are referred to as ;test standards; in this document; – guidelines for assessment of compliance. This document has the status of a horizontal standard in accordance with IEC Guide 108. IEC 62321-2:2021 cancels and replaces the first edition published in 2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Reference to the IEC 62321 series instead of to a list of individual parts of the IEC 62321 series. b) Update of the flow chart in Figure 1. Restructure of Clause 4 and update of examples in Annex A. c) Adjustment of the risk levels of certain parts and materials to reflect the recent technology development and material change. Update of Table B.1 to include the risk levels of phthalates. Creation of Table B.2 for other substances (e.g. HBCDD, PAH) in polymeric materials.