Standard Active Last Updated: Feb 23, 2023 Track Document
ASTM D7724-18(2023)e1

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

Standard Test Method for Carbon Black—Non-Dispersible Matter by Mechanical Flushing (NDM) D7724-18R23E01 ASTM|D7724-18R23E01|en-US Standard Test Method for Carbon Black—Non-Dispersible Matter by Mechanical Flushing (NDM) Standard new BOS Vol. 09.01 Committee D24
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Significance and 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.

Scope

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Details
Book of Standards Volume: 09.01
Developed by Subcommittee: D24.31
Pages: 5
DOI: 10.1520/D7724-18R23E01
ICS Code: 83.040.20