GB/T 39560.701-2020
Determination of certain substances in electrical and electronic 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
- Standard No.
- GB/T 39560.701-2020
- Language
- Chinese
- Release Date
- 2020
- Published By
- 国家市场监督管理总局、中国国家标准化管理委员会
- Lastest
- GB/T 39560.701-2020
- Scope
- This part of GB/T 39560 specifies a boiling water extraction method for the qualitative determination of hexavalent chromium in colorless and colored anti-corrosion coatings on metal samples. Due to its high activity, the content of hexavalent chromium in anti-corrosion coatings will change significantly with time and storage conditions. Since the storage conditions prior to sample submission are often unknown or not available, the process can only be based on the presence of hexavalent chromium detected in the coating during testing. When testing freshly plated samples, a waiting time of at least 5 days is required (after the electroplating process is complete) to ensure that the coating has stabilized. Oxidation of trivalent chromium to hexavalent chromium may occur during the waiting period. 2
GB/T 39560.701-2020 Referenced Document
- IEC 62321-1 Determination of certain substances in electrotechnical products .Part 1: Introduction and overview
GB/T 39560.701-2020 history
- 2020 GB/T 39560.701-2020 Determination of certain substances in electrical and electronic 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
GB/T 39560.701-2020 -All Parts
GB/T 39560.1-2020 Determination of certain substances in electrical and electronic products—Part 1: Introduction and overview
GB/T 39560.2-2020 Determination of certain substances in electrical and electronic products—Part 2: Disassembly，disjointment and mechanical sample preparation
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
GB/T 39560.4-2021 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
GB/T 39560.5-2021 Determination of certain substances in electrical and electronic 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
GB/T 39560.6-2020 Determination of certain substances in electrical and electronic products—Part 6: Polybrominated biphenyls and polybrominated diphenyl ethers in polymers by gas chromatography-mass spectrometry（GC-MS）
GB/T 39560.701-2020 Determination of certain substances in electrical and electronic 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
GB/T 39560.702-2021 Determination of certain substances in electrical and electronic products—Part 7-2:Hexavalent chrome—Determination of hexavalent chrome[Cr(VI)]in polymers and electronics by the colormetric method
GB/T 39560.8-2021 Determination of certain substances in electrical and electronic products—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)