ASTM-D7724 Standard Test Method for Carbon Black—Non-Dispersible Matter by Mechanical Flushing (NDM)

ASTM-D7724 - 2018 EDITION - CURRENT
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Standard Test Method for Carbon Black—Non-Dispersible Matter by Mechanical Flushing (NDM)
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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.

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.

Keywords

carbon black; non-dispersible matter;; ICS Number Code 83.040.20 (Rubber compounding ingredients)

To find similar documents by ASTM Volume:

09.01 (Rubber, Natural and Synthetic -- General Test Methods; Carbon Black)

To find similar documents by classification:

83.040.20 (Rubber compounding ingredients Including carbon black, kaolin clay, etc.)

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Document Number

ASTM-D7724-18

Revision Level

2018 EDITION

Status

Current

Modification Type

Revision

Publication Date

June 1, 2018

Document Type

Test Method

Page Count

5 pages

Committee Number

D24.31