"GB/T 21782.2-2008 Powder coatings - Part 2: Determination of density by gas comparison specific gravity meter method (Arbitration Law) " stipulates the method of determining the density of powder coatings using gas comparison specific gravity meter. This method is suitable for all types of powder coatings, including thermosetting and thermal plasticity powder coatings, and is the arbitration method for density determination. The gas comparison specific gravity meter method calculates density by measuring the volume change of powder coatings samples in gas, with high-precision and Repeatability. This standard is equivalent to ISO 8130-2:1992, which is centralized by the National Standardization Administration of China and implemented by the National Technical Committee for Standardization of Hazardous Chemicals Management. It was released on May 12, 2008 and implemented on September 1, 2008.