Standard Test Method for No Flow Point and Pour Point of Petroleum Products and Liquid Fuels


Importancia y uso:

5.1 The no flow point of a petroleum product is an index of the lowest temperature of its utility for some applications. Flow characteristics, such as no flow point, can be critical for the proper operation of lubricating systems, fuel systems, and pipeline operations.

5.2 Petroleum blending operations require precise measurement of the no flow point.

5.3 This test method can determine the temperature of the test specimen with a resolution of 0.1 °C at which either crystals have formed or viscosity has increased sufficiently, or both, to impede flow of the petroleum product.

5.4 The pour point of a petroleum product is an index of the lowest temperature of its utility for certain applications. Flow characteristics, like pour point, can be critical for the correct operation of lubricating oil systems, fuel systems, and pipeline operations.

5.5 Petroleum blending operations require precise measurement of the pour point.

5.6 Pour point results from this test method can be reported at either 1 °C or 3 °C intervals.

5.7 This test method yields a pour point in a format similar to Test Method D97/IP15 when the 3 °C interval results are reported.

5.8 This test method has better repeatability and reproducibility relative to Test Method D97/IP15 as measured in the 2011 interlaboratory test program (see 13.1.2).

Subcomité:

D02.07

Referida por:

D0396-24, D2880-23, D6074-15R22, D3487-24, D8240-22E01

Volúmen:

05.03

Número ICS:

75.080 (Petroleum products in general)

Palabras clave:

no flow point; petroleum products; pour point;

$ 1,092

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Norma
D7346

Versión
15(2021)

Estatus
Active

Clasificación
Test Method

Fecha aprobación
2021-04-01