ASTM D4715 - 98(2012)

    Standard Test Method for Coking Value of Tar and Pitch (Alcan)

    Active Standard ASTM D4715 | Developed by Subcommittee: D02.05

    Book of Standards Volume: 05.02


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    ASTM D4715

    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. Scope

    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 D2415.

    1.2 Coking values by this test method are higher than those obtained by Test Method D2416. See the bias statement in Section 13.

    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 and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    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 Code

    ICS Number Code 75.140 (Waxes, bituminous materials and other petroleum products)

    UNSPSC Code

    UNSPSC Code 30121602(Pitch)


    DOI: 10.1520/D4715-98R12

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