ASTM D7724-11(2016) PDF

Scope: 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.

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.

ASTM D7724-11(2016) Referenced Document

ASTM D1799 Standard Practice for Carbon Black-Sampling Packaged Shipments
ASTM D1900 Standard Practice for Carbon Black8212;Sampling Bulk Shipments
ASTM D4483 Standard Practice for Determining Precision for Test Method Standards in the Rubber and Carbon Black Industries
ASTM E11 Standard Specification for Wire Cloth and Sieves for Testing Purposes

2023 ASTM D7724-18(2023)e1 Standard Test Method for Carbon Black—Non-Dispersible Matter by Mechanical Flushing (NDM)
2018 ASTM D7724-18e1 Standard Test Method for Carbon Black—Non-Dispersible Matter by Mechanical Flushing (NDM)
2018 ASTM D7724-18 Standard Test Method for Carbon Black—Non-Dispersible Matter by Mechanical Flushing (NDM)
2011 ASTM D7724-11(2016) Standard Test Method for Carbon Black&x2014;Non-Dispersible Matter by Mechanical Flushing (NDM)
2011 ASTM D7724-11 Standard Test Method for Carbon BlackNon-Dispersible Matter by Mechanical Flushing (NDM)