The DB44/T 165-2003 standard specifies the classification of film mass of household electrical products and corresponding test methods. The standard describes in detail the key performance indicators of film such as appearance mass, thickness, adhesion, corrosion resistance, abrasion resistance, etc., and provides scientific test procedures and judgment standards. The implementation of this standard aims to improve the Appearance and durability of household electrical products, ensure the protection effect and decorative performance of films, and meet consumer requirements for product mass. It is suitable for the production, mass inspection and technical supervision departments of household electrical products, and provides a unified mass evaluation basis for the industry.