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介绍闪点试验起源和发展以及国内测定石油产品闪点的主要标准方法。闪点可分为闭口闪点和开口闪点,根据石油产品种类的不同采取不同的方法测定闪点。因此,对影响测定石油产品闪点准确性的因素进行探讨,包括升温速度、火焰大小和点火次数、试样的含水量、大气压的校正等;同时将闪点不同的测试方法进行比对,并对近年来国外在石油产品闪点测试标准中如何采用标准物质来保证测试的可靠性予以探讨。
Introduce the origin and development of the flash point test and the main standard methods for determining the flash point of petroleum products in China. Flash point can be divided into closed flash point and open flash point, according to the different types of petroleum products to take a different approach to determine the flash point. Therefore, the factors affecting the determination of the flash point of petroleum products are discussed, including the heating rate, flame size and ignition frequency, the moisture content of the sample, the atmospheric pressure correction and so on; at the same time, different test methods with different flash points are compared and compared In recent years, foreign countries in the flash point of petroleum products test standards how to use standard substances to ensure the reliability of the test to be explored.