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Standard Test Method for Cloud Point of Petroleum Products and Liquid Fuels (Small Test Jar Method)Translate name
STANDARD published on 1.1.2021
Designation standards: ASTM D7683-21
Publication date standards: 1.1.2021
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM
automated cloud point, biodiesel, cloud point, petroleum products,, ICS Number Code 75.080 (Petroleum products in general)
|Significance and Use|
5.1The cloud point of petroleum products and biodiesel fuels is an index of the lowest temperature of their utility for certain applications. Wax crystals of sufficient quantity can plug filters used in some fuel systems.
5.2Petroleum blending operations require precise measurement of the cloud point.
5.3This test method can determine the temperature of the test specimen at which wax crystals have formed sufficiently to be observed as a cloud with a resolution of 0.1C.
5.4This test method provides results that, when corrected for bias and rounded to the next lower integer (see ), have been found equivalent to Test Method .
5.5This test method determines the cloud point in a shorter time period than required by Test Method .
1.1This test method covers the determination of the cloud point of petroleum products, biodiesel, and biodiesel blends that are transparent in layers 40 mm in thickness, using an automatic instrument.
1.2The measuring range of the apparatus is from 65C to +51C, however the precision statements were derived only from samples with cloud point temperatures from 50C to +6C.
1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4This 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.
1.5This 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.
|2. Referenced Documents|
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