GB/T 3536-2008 《Petroleum products - Determination of flash and fire points - Cleveland open cup method》 Related products

GB/T 3536-2008 stipulates that the flash point and burning point of petroleum products are determined by the Cleveland open cup method. It is suitable for most petroleum products. The principle is to heat the sample in the Cleveland open cup, determine the flash point by observing the appearance of the flame, and continue to heat until the temperature at which the sample can continue to burn for more than 5 seconds is the burning point. The standard puts forward requirements for instrument structure, dimensional accuracy, etc., and clarifies the sample preparation process, covering sample selection and injection methods. Detailed operation points such as heating rate and flame detection Frequency are described to accurately determine the flash point and burning point of petroleum products, providing a key reference for the safe use of oil products.