DS/EN ISO 2719:2016/A1:2021

Determination of flash point – Pensky-Martens closed cup method – Amendment 1: Thermometers correction (ISO 2719:2016/Amd 1:2021)

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ISO 2719:2016 describes three procedures, A, B and C, using the Pensky-Martens closed cup tester, for determining the flash point of combustible liquids, liquids with suspended solids, liquids that tend to form a surface film under the test conditions, biodiesel and other liquids in the temperature range of 40 °C to 370 °C.

CAUTION – For certain mixtures no flash point, as defined, is observed; instead a significant enlargement of the test flame (not halo effect) and a change in colour of the test flame from blue to yellowish-orange can occur. Continued heating can result in significant burning of vapours outside the test cup, and can be a potential fire hazard.

NOTE 1 – Although, technically, kerosene with a flash point above 40 °C can be tested using this International Standard, it is standard practice to test kerosene according to ISO 13736.[5] Similarly, lubricating oils are normally tested according to ISO 2592[2].

Procedure A is applicable to distillate fuels (diesel, biodiesel blends, heating oil and turbine fuels), new and in-use lubricating oils, paints and varnishes, and other homogeneous liquids not included in the scope of Procedures B or C.

Procedure B is applicable to residual fuel oils, cutback residua, used lubricating oils, mixtures of liquids with solids, liquids that tend to form a surface film under test conditions or are of such kinematic viscosity that they are not uniformly heated under the stirring and heating conditions of Procedure A.

Procedure C is applicable to fatty acid methyl esters (FAME) as specified in specifications such as EN 14214[11] or ASTM D6751[13].

ISO 2719:2016 is not applicable to water-borne paints and varnishes.

NOTE 2 – Water-borne paints and varnishes can be tested using ISO 3679[3]. Liquids containing traces of highly volatile materials can be tested using ISO 1523[1] or ISO 3679.

Number of pages: 12

Published: 2021-04-08

Date of approval: 2021-04-06

International relationships : EN ISO 2719:2016/A1:2021 IDT ISO 2719:2016/Amd 1:2021 IDT

ICS: 75.080 - Petroleum products in general 75.100 - Lubricants, industrial oils and related products

Item number: M340607



  • CEN/TC 19
  • ISO/TC 28
  • ISO/TC 28/WG 9

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