D92

D92-98a
Standard Test Method for Flash and Fire Points by Cleveland Open Cup

1.1 This test method describes the determination of the flash and fire point of petroleum products by a manual Cleveland open cup apparatus or an automated Cleveland open cup apparatus.

Note 1- the precisions for fire point were not determined in the current inter-laboratory program. Fire point is a parameter which is not commonly specified, although in some cases, knowledge of this flammability temperature may be desired.

1.2 This test method is applicable to all petroleum products with flash points above 79°C (175°F) and below 400°C (752 °F) except fuel oils.

Note 2- This test method may occasionally be specified for the determination of the fire point of a fuel oil. For the determination of the flash points of fuel oils, use Test Method D-93. Test Method D-93 should also be used when it is desired to determine the possible presence of small, but significant concentrations of lower flash point substances which may escape detection by Test Method D-92. Test Method D-1310 can be employed if the flash point is known to be below 79°C (175°F).

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