NF EN ISO 2719
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Determination of flash point - Pensky-Martens closed cup method
ISO 2719:2002 describes two procedures, A and B, 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 and other liquids. It is applicable for liquids with a flash point above 40 degrees C. Procedure A is used for the determination of the flash point of paints and varnishes that do not form a surface film, unused lubricating oils and other petroleum products not covered by Procedure B. Procedure B is used for the determination of the flash point of residual fuel oils, cutback bitumens, used lubricating oils, liquids that tend to form a surface film, liquids with suspensions of solids and highly viscous materials such as polymeric solutions and adhesives. ISO 2719:2002 is not applicable to water-borne paints or liquids contaminated by traces of highly volatile materials.
ISO 2719:2002 describes two procedures, A and B, 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 and other liquids. It is applicable for liquids with a flash point above 40 degrees C.
Procedure A is used for the determination of the flash point of paints and varnishes that do not form a surface film, unused lubricating oils and other petroleum products not covered by Procedure B.
Procedure B is used for the determination of the flash point of residual fuel oils, cutback bitumens, used lubricating oils, liquids that tend to form a surface film, liquids with suspensions of solids and highly viscous materials such as polymeric solutions and adhesives.
ISO 2719:2002 is not applicable to water-borne paints or liquids contaminated by traces of highly volatile materials.
<p>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.</p> <p>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.</p> <p>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].</p> <p>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.</p> <p>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.</p> <p>Procedure C is applicable to fatty acid methyl esters (FAME) as specified in specifications such as EN 14214[11] or ASTM D6751[13].</p> <p>ISO 2719:2016 is not applicable to water-borne paints and varnishes.</p> <p>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.</p>
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1 Domaine d'application1
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2 Références normatives1
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3 Terme et définition2
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4 Principe2
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5 Produits2
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6 Appareillage2
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7 Préparation de l'appareil3
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7.1 Emplacement de l'appareil3
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7.2 Nettoyage du vase d'essai3
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7.3 Assemblage de l'appareil3
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7.4 Vérification de l'appareil3
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8 Échantillonnage4
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9 Manutention des échantillons4
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9.1 Produits pétroliers4
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9.2 Peintures et vernis4
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10 Mode opératoire5
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10.1 Généralités5
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10.2 Méthode A5
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10.3 Méthode B6
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11 Calculs6
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11.1 Conversion des indications de pression barométrique6
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11.2 Correction du point d'éclair observé à la pression atmosphérique normale6
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12 Expression des résultats6
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13 Fidélité6
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13.1 Généralités6
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13.2 Répétabilité, r7
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13.3 Reproductibilité, R7
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14 Rapport d'essai8
- Annexes
- A Vérification de l'appareil9
- B Appareil Pensky-Martens en vase clos12
- C Spécifications des thermomètres18
- D Adaptateur pour thermomètre à échelle basse19
- Bibliographie22
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