GB/T 21782.3-2025 in English

This standard outlines a method for determining the density of powder coatings using a liquid displacement pycnometer. It provides detailed procedures and specifications to ensure consistent and accurate measurements. The method involves the use of a calibrated device to measure the volume of a sample by displacement of a liquid. The standard specifies the conditions under which the test should be conducted, including temperature control and preparation of the sample. It also includes guidelines for calculation and reporting of results. The document is structured to facilitate the implementation of the method in laboratories and industrial settings. The standard aims to ensure that measurements are reliable and reproducible across different testing environments.