GB/T 3535-2025 in English

This standard provides a method for determining the pour point of petroleum products. The procedure outlines the necessary equipment, conditions, and steps to accurately measure the temperature at which a petroleum product ceases to flow under specified conditions. It ensures consistency and reliability in testing procedures across different laboratories and industries. The standard specifies the preparation of samples, the use of calibrated instruments, and the recording of results. It also includes guidelines for handling and interpreting test data. The method is applicable to various types of petroleum products and is designed to support quality control and product specification requirements. The standard is structured to facilitate clear communication and uniform application of the testing method.