Fire Safety Science Digital Archive

Using a modified Abel closed cup flash point apparatus, both 'lower' and 'upper' flash points have been measured for the system n-hexane/ carbon tetrachloride. From these experimental results a complete flammability diagram has been constructed. The 'peak' flammability limit by this method was 9.7% carbon tetrachloride at a n-hexane concentration of 3.4%, compared with 11.5% and 3.2% respectively when determined by the standard limit apparatus.