The front specifications and material requirements of the "Certificate of Conformity": The "Certificate of Conformity" should adopt the A4 format (210mm × 297mm) of the A series specification paper specified in the GB/T 788 "Book and Magazine Format and Format Size" standard ), the top margin is 20mm, the bottom margin is 20mm, the left margin is 20mm, and the right margin is 20mm, the header is 15mm, and the footer is 17.5mm.

If a producer or seller deceives users and consumers and deliberately attaches a certificate of conformity to a substandard product, it constitutes an illegal fact of passing off a substandard product as a qualified product. According to regulations, producers and sellers should be held administratively and criminally responsible; sellers should also bear defect warranty liability.

Effectiveness of product certificate:

The "Product Quality Law" clearly stipulates that there should be a product quality inspection certificate on the product or its packaging. On the one hand, it requires manufacturers to ensure product quality. , on the other hand, it is to allow users and consumers to identify the quality of the product.

The product quality inspection certificate is a certificate or certificate attached to the product or its packaging by the manufacturer to show that the quality of the product meets the specified technical requirements and has been inspected by its quality inspection agency and inspectors. Seals and other qualification marks.

The product quality inspection certificate is not approved and issued by any competent department or superior unit, but is produced by the manufacturer itself. There are three main forms of product quality inspection certificates: certificate of conformity, inspection seal and inspection process number seal.

Reference for the above content: Baidu Encyclopedia-Product Certificate