The EU ROHS testing standard IEC 62321 is a testing method for restricted hazardous substances in electronic and electrical products. This standard mainly focuses on harmful substances in products, such as lead, mercury, cadmium and hexavalent chromium, as well as the content of brominated flame retardants polybrominated biphenyls and polybrominated diphenyl ethers. Through this standard, manufacturers can ensure that their products comply with the European Union's RoHS directive, which restricts the use of certain hazardous substances in electrical and electronic equipment.

The EU RoHS Directive (2011/65/EU) came into effect on January 2, 2013, replacing the original RoHS 1 Directive (2002/95/EC). This directive requires the CE marking on electrical and electronic equipment, the creation of a declaration of conformity, and the provision of methods for presumption of conformity. In addition, a technical key containing materials, components and EEE test data should also be provided, or proof that the product complies with the unified standards published in the EU official directive journal.

Please note that this technical key standard should not be confused with the EN 62321-X series of analytical test standards that specify chemical testing of materials, composition and EEE for certain substances. To date, the only accepted harmonized standard that is RoHS 2 compliant is EN 50581.

The six new EU ROHS certified metals include lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (Cr6+), polybrominated biphenyls (PBBs) and polybrominated diphenyl ethers (PBDEs). These substances may be present in electrical and electronic products and are harmful to the environment and human health. EU ROHS certification requires that the content of these substances cannot exceed the limit value, of which cadmium is 0.01% and the rest is 0.1%.



For the new version of EU ROHS certification, special attention should be paid to the following points:

1. Scope of application: The new version of EU ROHS certification applies to all electronic and electrical products, including white household appliances, black household appliances, power tools, medical electrical equipment, etc. These products may contain these six hazardous substances during the production process and raw materials, so manufacturers need to ensure that their products comply with the new ROHS standards before they can enter the EU market.

2. Detection method: The new version of EU ROHS certification uses X-ray fluorescence spectrometry or energy dispersive X-ray spectroscopy for detection. These methods can quickly and accurately detect the content of six harmful substances in products.

3. Compliance assessment: Manufacturers need to provide documents such as declaration of compliance, technical key and method of presumption of compliance to prove that the product complies with the new version of ROHS standards. In addition, type inspection and random sampling inspection are also required to ensure product compliance.

4. Labels and logos: The new version of EU ROHS certification requires the CE mark to be affixed to the product, and the directive number and standard number to be indicated. In addition, information on the content of six hazardous substances is also required to be provided in product instructions so that consumers can understand the environmental performance of the product.