Significance and Use

This test method is useful in evaluating and characterizing tar and pitch. It is also useful as one element in establishing the uniformity of shipments and sources of supply.

1. Scope

1.1 This test method covers the determination of the quinoline-insoluble matter (QI) in tar and pitch using a stainless steel filtering crucible and a filtration membrane.

1.2 This test method was evaluated in round robin testing using materials in the range of zero to twenty quinoline insoluble weight percent (wt%).

1.3 Since this test method is empirical, strict adherence to all details of the procedure is necessary.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 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

D71 Test Method for Relative Density of Solid Pitch and Asphalt (Displacement Method)

D95 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation

D329 Specification for Acetone

D362 Specification for Industrial Grade Toluene

D850 Test Method for Distillation of Industrial Aromatic Hydrocarbons and Related Materials

D2318 Test Method for Quinoline-Insoluble (QI) Content of Tar and Pitch

D4296 Practice for Sampling Pitch

E1 Specification for ASTM Liquid-in-Glass Thermometers

E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves

E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

Keywords

coal-tar insolubles; pitch; QI; quinoline insolubles; tar; Tars; Pitch; Quinoline insolubles (QI) ;

ICS Code

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

DOI: 10.1520/D7280-06R11

ASTM International is a member of CrossRef.

ASTM D7280