BS EN ISO 2719:2016+A1:2021
$142.49
Determination of flash point. Pensky-Martens closed cup method
Published By | Publication Date | Number of Pages |
BSI | 2021 | 32 |
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 |