ASTM D4715 Test Method for Coking Value of Tar and Pitch (Alcan)
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 inch-pound units are to be regarded as the 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
2.1 ASTM Standards:
D850 Test Method for Distillation of Industrial Aromatic Hydrocarbons and Related Materials
D2415 Test Method for Ash in Coal Tars and Pitch
D2416 Test Method for Coking Value of Tar and Pitch (Modified Conradson)
D4296 Practice for Sampling Pitch
E 11 Specification for Wire Cloth and Sieves for Testing Purposes
