IEC 62321-7-1:2015
Determination of certain substances in electrotechnical products - Part 7-1: Hexavalent chromium - Presence of hexavalent chromium (Cr(VI)) in colourless and coloured corrosion-protected coatings on metals by the colorimetric method
发布时间:2015-09-16 实施时间:


IEC 62321-7-1:2015 标准是针对电气产品中六价铬(Cr(VI))含量的测定方法。六价铬是一种有害物质,对人体和环境都有一定的危害。因此,在电气产品中使用的防腐涂层中,六价铬的含量需要进行测定,以确保产品的安全性和环保性。

该标准适用于金属表面的无色和有色防腐涂层,如镀锌、镀铬、镀镍、喷涂、电泳涂层等。该标准的测定方法是基于色度法,通过比较样品和标准溶液的颜色差异来测定六价铬的含量。该方法简单、快速、准确,可以满足电气产品制造商的需求。

该标准的实施需要一定的仪器设备和技术要求。首先,需要使用紫外可见分光光度计或分光光度计来测定样品和标准溶液的吸光度。其次,需要使用标准溶液来校准仪器,以确保测定结果的准确性。最后,需要按照标准要求进行样品的制备和处理,以保证测定结果的可靠性。

该标准的实施可以有效保护人类健康和环境,防止有害物质对人体和环境造成危害。同时,该标准也可以促进电气产品制造商的技术创新和产品质量提升,提高产品的市场竞争力。

相关标准
- IEC 62321-1:2013 Determination of certain substances in electrotechnical products - Part 1: Introduction and overview
- IEC 62321-2:2013 Determination of certain substances in electrotechnical products - Part 2: Disassembly, disjointment and mechanical sample preparation
- IEC 62321-3-1:2013 Determination of certain substances in electrotechnical products - Part 3-1: Screening - Lead, mercury, cadmium, total chromium and total bromine by X-ray fluorescence spectrometry
- 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
- IEC 62321-5:2013 Determination of certain substances in electrotechnical products - Part 5: Cadmium, lead and chromium in polymers and electronics and cadmium and lead in metals by AAS, AFS, ICP-OES and ICP-MS