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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 D2415.
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)
UNSPSC Code 30121602(Pitch)