This standard specifies the method for evaluating the anti-rust performance of anti-rust grease on metals using Salt Spray Tester. The test requires that the coated specimen be placed in the designated Salt Spray Tester, and the degree of rust of the specimen is assessed after exposure for a certain period of time under the specified test conditions. The standard describes in detail the required test equipment and test conditions to ensure the accuracy and comparability of test results. The standard is suitable for evaluating the performance of various types of anti-rust grease, providing reliable technical support and quality control basis for its actual use.