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Significance and Use
4.1 This test method is useful for indicating the relative coke-forming propensities and for evaluating and characterizing tars and pitches. The test method can also be used as one element in establishing the uniformity of shipments or sources of supply.
1.1 This test method covers the determination of the coking value of tar and pitch having an ash content not over 0.5 %, as determined by Test Method .
1.2 Coking values by this test method are higher than those obtained by Test Method . See the bias statement in Section .
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D850 Test Method for Distillation of Industrial Aromatic Hydrocarbons and Related Materials
D2415 Test Method for Ash in Coal Tar and Pitch
D2416 Test Method for Coking Value of Tar and Pitch (Modified Conradson)
D4296 Practice for Sampling Pitch
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
ICS Number Code 75.140 (Waxes, bituminous materials and other petroleum products)
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ASTM D4715-98(2017), Standard Test Method for Coking Value of Tar and Pitch (Alcan), ASTM International, West Conshohocken, PA, 2017, www.astm.orgBack to Top