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Standard Test Method for Congealing Point of Petroleum Waxes, Including PetrolatumTranslate name
STANDARD published on 1.6.2017
Designation standards: ASTM D938-12(2017)
Publication date standards: 1.6.2017
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
congealing point, petrolatum, petroleum waxes,, ICS Number Code 75.140 (Waxes, bituminous materials and other petroleum products)
|Significance and Use|
5.1 Congealing point is a wax property that is of interest to many petroleum wax consumers. The procedure described here measures the temperature at which a sample being cooled develops a “set” or resistance to flow. At that temperature, the wax may be at or close to the solid state, or it may be semisolid and quite unctuous, depending on the composition of the wax or petrolatum being tested. In the case of petrolatums, congealing property is associated with the formation of a gel structure as the sample cools.
1.1 This test method covers determination of the congealing point of petroleum waxes, including petrolatum.
1.2 The values stated in SI units are to be regarded as the standard.
1.2.1 Exception—The values given in parentheses are for information only.
1.3 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.
Note 1: This test method is an alternative to Test Method . Results obtained are usually lower than the results obtained by Test Method – IP 133, the amount of the deviation varying with the nature of the petroleum wax.
1.5 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.
|2. Referenced Documents|
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