BS EN 62321-4:2014+A1:2017描述了聚合物、金属和金属中汞的测试方法 通过CV-AAS、CV-AFS、ICP-OES和ICP-MS测定电子产品。本标准规定了测定产品中汞（Hg）的含量 电工产品。这些材料包括聚合物、金属和电子产品（例如印刷品） 接线板、冷阴极荧光灯、水银开关）。含汞电池 应按照[1]1中所述进行处理。实验室间研究仅对这些进行了评估 未涵盖塑料和其他基质的试验方法。本标准将样品作为待处理和测量的对象。怎么回事 样本是或如何获取样本由执行测试的实体定义。进一步的 从待测试的电子成品中获取代表性样品的指南 IEC 62321-2中规定物质的含量。值得注意的是，选择 和/或样品的测定可能会影响测试结果的解释。本标准描述了四种方法的使用，即CV-AAS（冷原子吸收法） 吸收光谱法），CV-AFS（冷蒸气原子荧光光谱法）ICP-OES （电感耦合等离子体发射光谱法）和ICP-MS（电感耦合等离子体发射光谱法） 以及制备样品溶液的几个程序 专家可以从中选择最合适的分析方法。通过CV-AAS、CV-AFS、ICP-OES和ICP-MS进行分析，可以确定目标物 汞元素，具有高精度（低%范围内的不确定度）和/或高精度 灵敏度（降至微克/千克水平）。本标准中描述的试验程序如下: 旨在为汞浓度提供最高水平的准确度和精密度 在4 mg/kg至1000 mg/kg范围内。这些程序并不局限于更高的要求 浓度。对于直接分析，使用热分解-金融合结合 CV-AAS（TD（G）-AAS）也可用于汞分析，无需样品消解， 尽管由于样本量减少，检测限高于其他方法。交叉引用:EN 62554 EN 62321-3-1EN ISO 3696ISO 3696IEC 62321-2EN 62321-2EN 62321-1IEC 62321-3-1IEC 62321-1IEC 62554US EPA 6020A:1998IEC 62321-5US EPA SW-846:1992JEL303US EPA 1631:2002ISO 6206:1979US EPA 7473:1998JEL305US EPA 6010C: 2000US EPA 245.7:2002US EPA 3015A:1998US EPA 7474:1998EN 62321-5包含以下内容:修正案，2018年3月

BS EN 62321-4:2014+A1:2017 describes test methods for mercury in polymers, metals and electronics by CV-AAS, CV-AFS, ICP-OES and ICP-MS.This standard 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, cold cathode fluorescent lamps, mercury switches). Batteries containing Hg should be handled as described in [1]1. The interlaboratory study has only evaluated these test methods for plastics, other matrices were not covered.This standard 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 standard describes the use of four methods, namely CV-AAS (cold vapour atomic absorption spectrometry), CV-AFS (cold vapour 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 to 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.Cross References:EN 62554EN 62321-3-1EN ISO 3696ISO 3696IEC 62321-2EN 62321-2EN 62321-1IEC 62321-3-1IEC 62321-1IEC 62554US EPA 6020A:1998IEC 62321-5US EPA SW-846:1992JEL303US EPA 1631:2002ISO 6206:1979US EPA 7473:1998JEL305US EPA 6010C:2000US EPA 245.7:2002US EPA 3015A:1998US EPA 7474:1998EN 62321-5Incorporates the following:Amendment, March 2018