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BS EN ISO 2719:2016+A1:2021

BS EN ISO 2719:2016+A1:2021

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Determination of flash point. Pensky-Martens closed cup method

Published By Publication Date Number of Pages
BSI 2021 32
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This International Standard 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].

This International Standard 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.

PDF Catalog

PDF Pages PDF Title
2 undefined
6 European foreword
Endorsement notice
8 Foreword
9 Introduction
10 1 Scope
2 Normative references
11 3 Terms and definitions
4 Principle
5 Chemicals and materials
6 Apparatus
12 7 Apparatus preparation
7.1 General
7.2 Location of the apparatus
7.3 Cleaning the test cup
7.4 Apparatus assembly
7.5 Apparatus verification
13 8 Sampling
9 Sample handling
9.1 Petroleum products
9.1.1 Sub-sampling
9.1.2 Samples containing undissolved water
9.1.3 Samples that are liquid at ambient temperature
9.1.4 Samples that are very viscous, semi-solid or solid at ambient temperature
14 9.2 Paints and varnishes
10 Procedure
10.1 General
10.2 Procedure A
15 10.3 Procedure B
16 10.4 Procedure C
17 11 Calculation
11.1 Conversion of barometric pressure reading
11.2 Correction of observed flash point to standard atmospheric pressure
12 Expression of results
13 Precision
13.1 General
13.2 Repeatability, r
18 13.3 Reproducibility, R
19 14 Test report
20 Annex A (informative) Apparatus verification
23 Annex B (normative) Pensky-Martens closed cup test apparatus
29 Annex C (normative) Temperature measuring device specification
31 Bibliography

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BS EN ISO 2719:2016+A1:2021
$142.49