GB/T 23825-2009 Gas Analysis method for formaldehyde release from wood-based panels and their products. It guides how to select representative panel samples, clarify the equipment and operation procedures for gas collection and detection, and strictly regulate key conditions such as environment temperature, Humidity, and test time. With the help of this standard, formaldehyde release can be accurately measured, providing a basis for judging the environmental friendliness of wood-based panels, helping consumers purchase safe panels, promoting the wood-based panel industry to improve product green quality, maintain indoor air mass and human health.