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Standard Test Method for Pour Point of Petroleum Products (Automatic Air Pressure Method)
Name übersetzen
NORM herausgegeben am 1.5.2018
Bezeichnung normen: ASTM D6749-02(2018)
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.5.2018
SKU: NS-849466
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Keywords:
automatic air pressure method, petroleum products, pour point,, ICS Number Code 75.080 (Petroleum products in general)
Significance and Use | ||||||||
5.1 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 systems, fuel systems, and pipeline operations. 5.2 Petroleum blending operations require precise measurement of the pour point. 5.3 Test results from this test method can be determined at either 1 °C or 3 °C intervals. 5.4 This test method yields a pour point in a format similar to Test Method D97/IP 15 when the 3 °C interval results are reported. However, when specification requires Test Method D97/IP 15, do not substitute this test method. Note 2: Since some users may wish to report their results in a
format similar to Test Method D97/IP 15 (in 3 °C intervals), the
precision data were derived for the 3 °C intervals. For statements
on bias relative to Test Method D97/IP 15, see 13.3.1.
5.5 This test method has better repeatability and reproducibility relative to Test Method D97/IP 15 as measured in the 1998 interlaboratory test program (see Section 13). |
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1. Scope | ||||||||
1.1 This test method covers the determination of pour point of petroleum products by an automatic apparatus that applies a slightly positive air pressure onto the specimen surface while the specimen is being cooled. 1.2 This test method is designed to cover the range of temperatures from −57 °C to +51 °C; however, the range of temperatures included in the (1998) interlaboratory test program only covered the temperature range from −51 °C to −11 °C. 1.3 Test results from this test method can be determined at either 1 °C or 3 °C testing intervals. 1.4 This test method is not intended for use with crude oils. Note 1: The applicability of this test method on residual fuel
samples has not been verified. For further information on the
applicability, refer to 13.4.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||||||
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