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ASTM D7724-11(2016)

Historical Reaffirmation

Standard Test Method for Carbon Black—Non-Dispersible Matter by Mechanical Flushing (NDM)

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1.1 This test method covers the determination of non-dispersible matter after mechanical water flushing of regular untreated carbon blacks. It may not be applicable to oil-treated carbon blacks because the oil would prevent proper wetting of the black by water.

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

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.


4.1 The quantity of non-dispersible matter of carbon black is important in some molded or extruded products as it may relate to the surface appearance of those products. The maximum amount of non dispersible matter and the minimum size of the particles to be analyzed in each application is normally determined and agreed to between the user and the producer.

SDO ASTM: ASTM International
Document Number D7724
Publication Date June 1, 2016
Language en - English
Page Count 3
Revision Level 11(2016)
Supercedes
Committee D24.31
Publish Date Document Id Type View
June 1, 2018 D7724-18E01 Revision
June 1, 2018 D7724-18 Revision
Nov. 1, 2011 D7724-11 Revision
Jan. 1, 2023 D7724-18R23E01 Reaffirmation
June 1, 2016 D7724-11R16 Reaffirmation