GB/T 25272-2010 "Moisture-proof agent for nitrocellulose coatings" specifies the technical requirements, test methods, and inspection rules for moisture-proof agents used in nitrocellulose coatings. It is applicable to specialized moisture-proof agents for nitrocellulose coatings formulated from organic solvents such as alcohols and esters. The standard covers indicators such as appearance, color, moisture content, and solubility. The moisture content is determined using the Karl Fischer method, which requires a Karl Fischer moisture titrator. Solubility testing is conducted using equipment such as glass beakers and stirring rods. This standard provides a basis for quality control of moisture-proof agents and ensures the construction performance of nitrocellulose coatings.