The quality control standards of mobile phone shell processing mainly include the following aspects:

Product appearance: The appearance quality of the mobile phone case is an important part of quality control. This includes color, finish, whether there are scratches, blemishes, etc. According to the "Mobile phone plastic shell inspection standards", the product surface is divided into A side, B side, C side and D side, each side has the corresponding inspection standards

The phone case must ensure that it does not pose a threat to the user. This includes ensuring that the material does not contain harmful substances and that harmful chemicals are not released when the phone heats up.

Environmental adaptability: The phone case needs to be able to maintain its performance under different environmental conditions, such as high temperature resistance, low temperature resistance, chemical resistance, etc.

Function: If the phone case has a specific function, such as waterproof, anti-drop, etc., these functions must meet specific standards and test requirements.

Environmental performance: The material and production process of the phone case need to meet environmental requirements and reduce the impact on the environment. Group standard T/CA 105-2019 of the General Code for Mobile Phone Cases specifies the environmental performance testing of mobile phone cases, including restrictions on hazardous substances

Quality assessment procedures: including product sampling, inspection classification, conformity determination and other requirements to ensure the consistency and reliability of product quality.

Packaging, transportation and storage: Products also need to meet specific standards during packaging, transportation and storage to ensure that the product remains intact before reaching the consumer.

Standard: Chinese standard GB/T 26572-2011 "Requirements for Limits of Restricted Substances in electronic and Electrical Products" stipulates the limits of six restricted substances such as lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers in electronic and electrical products

Group standard: "General Specification for Mobile Phone Cover" Group standard T/CA 105-2019 regulates the quality technical requirements and test methods of ordinary mobile phone cover and functional mobile phone cover such as anti-fall type, waterproof type and decorative type from the aspects of appearance, environmental adaptability, function and environmental protection of mobile phone cover products, and regulates the corresponding quality assessment procedures and packaging, transportation and storage