The standard "GB/T 41711-2022 Determination of Acid, Sulphur and Salt Resistance of Coatings on the Inner Wall of Food Metal Containers" specifies the test method for the tolerance of coatings or film laminating layers on the inner wall of food metal containers in acid, sulfur and salt environments. The standard applies to food metal containers such as cans and beverage cans for Coating Iron or Aluminum, Film Laminating Iron or Aluminum. The standard evaluates the acid resistance, sulfur resistance and salt resistance of coatings or film laminating layers by simulating the corrosion conditions under actual use conditions to ensure their performance and safety in food Encasement. The standard cites the relevant specifications for analytical water to ensure the accuracy and reliability of the test.