"QB/T 3816-1999 Light industrial products - Metal platings and aluminum oxide film thickness test method, weighing method" standard stipulates the test method of metal platings and aluminum oxide film thickness in light industrial products, using the weighing method for measurement. The standard is applicable to all kinds of light industrial products, including but not limited to kitchen utensils, daily Hardware, etc., covering metal platings and aluminum oxide film measurement principles, equipment selection and calibrating requirements, as well as specific test steps and data processing methods. The implementation of this standard can ensure the accurate measurement of metal platings and aluminum oxide film thickness in light industrial products, providing technical support for product quality control and technical evaluation.