Determination of ISO 2719 Flash Point - Pensky-Martens Closed Cup Method

The ISO 2719 standard, developed by the International Standards Organization (ISO), describes test methods for determining the flash point of the following types of liquids:

flammable liquids
Liquids containing suspended solids
Liquids that tend to form a surface film under test conditions
Biodiesel and other liquids in the temperature range of 40 to 370 degrees

Pensky-Martens closed cup tester is used in these test methods.

This standard describes three different test methods, A, B, and C:

Method A applies to distilled fuels such as diesel, biodiesel blends, heating oil and turbine fuels, new and in-use lubricating oils, paints and varnishes, and other homogeneous liquids not covered by the other two methods.
Method B is applicable to residual fuels, cut-off residues, used lubricating oils, mixtures of liquids with solids, liquids with a kinematic viscosity that tends to form a surface film under test conditions or that are not heated uniformly under mixing and heating.
Method C can be applied to fatty acid methyl esters as described in standards such as EN 14214 or ASTM D6751.

No flash point is observed for certain mixtures during the tests, instead a significant expansion of the test flame and a change in the color of the test flame from blue to yellowish-orange occurs. Continued heating can cause significant vapors to burn outside the test vessel, creating a potential fire hazard.

Technically, kerosene with a flash point above 40 degrees can be tested using this standard, but it seems more appropriate to test kerosene according to the ISO 13736 standard (Abel closed cup method). Similarly, lubricating oils are normally tested according to the ISO 2592 standard (Cleveland open cup method).

The ISO 2719 standard does not apply to water-based paints and varnishes.

Our organization also provides Pensky-Martens closed cup method testing services for the purpose of determining the flash point within the scope of ISO 2719 standard, with its trained and expert staff and advanced technological equipment, among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors.