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Significance and Use
For petroleum products and biodiesel fuels, cloud point of a petroleum product is an index of the lowest temperature of their utility for certain applications.
Note—All dimensions are in milllimetres.FIG. 1 Apparatus for Cloud Point Test
1.1 This test method covers only petroleum products and biodiesel fuels that are transparent in layers 40 mm in thickness, and with a cloud point below 49°C.
Note 1—The interlaboratory program consisted of petroleum products of Test Method D1500 color of 3.5 and lower. The precisions stated in this test method may not apply to samples with ASTM color higher than 3.5.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 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. For specific hazard statements, see Section 7.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1500 Test Method for ASTM Color of Petroleum Products (ASTM Color Scale)
E1 Specification for ASTM Liquid-in-Glass Thermometers
Energy Institute StandardSpecifications for IP Standard Thermometers
ICS Number Code 75.080 (Petroleum products in general)
UNSPSC Code 15101500(Petroleum and distillates)
ASTM D2500-11, Standard Test Method for Cloud Point of Petroleum Products, ASTM International, West Conshohocken, PA, 2011, www.astm.orgBack to Top