Visual dispersion ratings correlate with certain important physical properties of the compound. A rating of 5 indicates a state of dispersion developing near maximum properties, while a rating of 1 would indicate a state of dispersion developing considerably depressed properties. Normally, the visual dispersion ratings indicate the following levels of compound quality:

1. Scope

1.1 These test methods cover the degree of dispersion of carbon black in rubber. Three test methods are described as follows:

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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

Keywords

agglomerate count for carbon black dispersion; carbon black; carbon black dispersion in water; dispersion; interference microscope ; micro-roughness measurement; profilometer; visual inspection for carbon black dispersion; Agglomerate count method; Carbon black; Dispersion; Microscopic examination; Rubber compounding materials; Visual examination--rubber;

ICS Code

ICS Number Code 83.040.20 (Rubber compounding ingredients)

Citing ASTM Standards

[Back to Top]