1.1 These test methods cover the determination of the amount of carbon black in a masterbatch and cover emulsion SBR-carbon black mixtures, but may be applicable to other polymers. Three test methods are included:

	Sections
Inert Atmosphere Pyrolysis	3-10
Vacuum Pyrolysis	11-17
Thermogravimetric Analyzer	18-24

Note 1 - The nomenclature used in these test methods is in accordance with Practice D 1418.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

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.