Pour point

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As a pour point (English: setting point ) is defined as the temperature , no movement of the sample in the longer visible for 10 seconds - this has therefore just ceased to flow. The relevant standard DIN 51583 is no longer valid and has been incorporated into DIN EN 23015 ( Cloudpoint ). The solidification point is often incorrectly mentioned for the pour point, which in English. Language means “solidification point”. But this is only a general description and does not correspond to any standard.

The pour point (English: pour point ) ( engl. "Pour" for "pour" in terms of "pouring") to ISO 3016 is the lowest temperature of a liquid product, which is just on cooling flows . Since the deviation of the results of the pour point (DIN 51583) and the pour point (ISO 3016) are each ± ​​3 ° C accuracy, the pour point can replace the pour point as a method that is no longer valid, because they have the same structure in terms of apparatus.

In fuel technology , the pour point is often measured according to ISO 3016, mostly by hand. The next higher (i.e. warmer) temperature, which is divisible by 3, is specified. However, there are also devices that measure fully automatically to an accuracy of approx. 0.1 ° C in accordance with the ASTM D5985 standard . In the data sheets of petrochemical products, the term pour point and pour point are often used synonymously, which is incorrect (because the pour point is always higher than the pour point).