This standard specifies a method for the determination of vocs (VOC) content in tanks of low VOC latex paints. It is suitable for evaluating the VOC content level in latex paints and provides a scientific basis for the environmental performance of products. The standard details the collection, processing and experimental procedures of test samples, and clarifies the calculation and reporting methods of results. Its purpose is to promote the development and application of low-voc coatings, reducing the impact on the environment and human health. The standard provides manufacturers, quality control agencies and researchers with uniform test specifications, which helps products comply with environmental regulations and provides technical support for consumers to choose Environmental Coatings.