This standard is a specialized technical specification developed to meet the environmental and safety requirements of children's activity spaces, with a particular focus on the limit requirements for harmful substances in products. Its indicators are stricter than those for ordinary interior wall coatings. It comprehensively defines the terminology, classification, requirements, test methods, and evaluation rules for related coating products, aiming to control the content of harmful substances such as formaldehyde, volatile organic compounds, and soluble heavy metals to protect children's health. When testing according to this standard, a series of professional instruments are utilized, including wet film applicators or automatic coating machines for preparing uniform coating films, as well as core analytical equipment such as gas chromatography-mass spectrometers for accurately measuring the content of chemical substances.