Experimental Study of Flash Point for Multi-components Flammable Liquid

In this paper,the flash points of multi-components flammable liquid mixtures with different proportion are studied by closed-cup flash point tester and opened-cup flash point tester and the influencing factors for test accuracy of flash point are discussed,finding out the changing rule and the influence factors for flash point about partly flammable fluid mixtures.The research shows:(i) for the completely mutually soluble mixture,the flash point is near the flash point of the component with low flash point.In addition,as the substance with low flash point increases,the flash point of mixtures lowers;(ii) for mixture with water,the flash point increases with the increases of the content of the liquid;(iii) sample volume,ignition frequency,heating rate etc,have a definite influence upon test value of flash point.The research provides references for the flash point prediction and safe storage and transportation of multi-components flammable liquid.