ASTM-D2416 › Historical Revision Information
Standard Test Method for Coking Value of Tar and Pitch (Modified Conradson)
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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 method are practically the same as those obtained by Test Method D189, but results are more reproducible. The apparatus used is identical, except that an electric furnace is substituted for the gas flame.
1.3 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.
Significance and Use
This test method is useful for indicating the relative coke-forming propensities and for evaluating and characterizing tars and pitches. This test method can also be used as one element in establishing the uniformity of shipments or sources of supply.
FIG. 1 Apparatus for Determining Carbon Residue
Keywords
coking value; conradson; ICS Number Code 91.100.50 (Binders. Sealing materials)
To find similar documents by ASTM Volume:
05.01 (Petroleum Products and Lubricants (I): D56 - D3710)
To find similar documents by classification:
91.100.50 (Binders. Sealing materials Including geomembranes, asphalts for buildings, etc.)
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Document Number
ASTM-D2416-84(2004)
Revision Level
1984 R04 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
Nov. 1, 2004
Document Type
Test Method
Page Count
3 pages
Committee Number
D02.05