ASTM D5985-02(2008)
石油产品倾点的标准试验方法(旋转法)
Standard Test Method for Pour Point of Petroleum Products (Rotational Method)
非常抱歉，我们暂时无法提供预览，您可以试试： 免费下载 ASTM D5985-02(2008) 前三页，或者稍后再访问。
点击下载后，生成下载文件时间比较长，请耐心等待......
- 标准号
- ASTM D5985-02(2008)
- 发布日期
- 2002年
- 实施日期
- 废止日期
- 无
- 中国标准分类号
- E30
- 国际标准分类号
- 75.080 (Petroleum products in general)
- 发布单位
- 美国材料与试验协会
- 适用范围
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.
Petroleum blending operations require precise measurement of the pour point.
This test method can determine the temperature of the test specimen with a resolution of 0.1x00B0;C at which either crystals have formed or viscosity increases sufficiently to impede movement of the petroleum product.
This test method yields a pour point in a format similar to Test Method D 97
/IP15 when the 3x00B0;C interval results are reported. Note 28212;Since some users may wish to report their results in a format similar to Test Method D 97
(in 3x00B0;C intervals) the precisions were derived for the temperatures rounded to the 3x00B0;C intervals. For statements on bias relative to Test Method D 97 , see 13.3. This test method has better repeatability and comparable reproducibility relative to Test Method D 97
as measured in the 1992 interlaboratory program. (See Section 13.) 1.1 This test method covers the determination of pour point of petroleum products by an automatic instrument that continuously rotates the test specimen against a suspended detection device during cooling of the test specimen.
1.2 This test method is designed to cover the range of temperatures from x2212;57 to +51x00B0;C; however, the range of temperatures included in the 1992 interlaboratory program only covered the temperature range of x2212; 39 to +6x00B0;C (see 13.4).
1.3 This test method determines the no-flow point of petroleum products by detection of the crystal structure or viscosity increase, or both, in the sample that is sufficient to impede flow of the specimen.
1.4 This test method is not intended for use with crude oils.
Note 18212;The applicability of this test method on residual fuel samples has not been verified. For further information on 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.