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ASTM D6892-03(2014)
Standard Test Method for Pour Point of Petroleum Products (Robotic Tilt Method)
5 стр.
Заменен
Печатное изданиеЭлектронный (pdf)
96.72 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
75.080 Petroleum products in general / Нефтяные продукты в целом
Сборник (ASTM):
05.03 Petroleum Products, Liquid Fuels, and Lubricants (III): D6138–D6971 / Нефтепродукты, жидкое топливо и смазочные материалы (III): D6138–D6971
Тематика:
Petroleum
Описание
Значение и использование

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

Schematic of Cooling/Heating Block and Cooling Circulating
Bath
FIG. 1 Schematic of Cooling/Heating Block and Cooling Circulating Bath

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 or 3°C intervals.

5.4 This test method yields a pour point in a format similar to Test Method D97 or IP 15, when the 3°C interval results are reported.

Note 2Since some users may wish to report their results in a format similar to Test Method D97 or 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 or IP 15, see the research report.

5.5 This test method has comparable repeatability and better reproducibility relative to Test Method D97 or IP 15 as measured in the 1998 interlaboratory program (see Section 13).

Область применения

1.1 This test method covers the determination of the pour point of petroleum products by an automatic instrument that tilts the test jar to detect movement of the surface of the test specimen with an optical device, after being removed from a regulated, stepped-bath cooling jacket.

1.2 This test method is designed to cover the range of temperatures from −57 to +51°C; however, the range of temperatures included in the 1998 interlaboratory test program only covered the temperature range from −51 to −11°C.

1.3 Test results from this test method can be determined at either 1 or 3°C testing intervals.

1.4 This test method is not intended for use with crude oils.

Note 1The 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 and health practices and determine the applicability of regulatory limitations prior to use.

Ключевые слова:
automatic pour point; petroleum products; pour point; robotic tilt method