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Significance and Use
4.1 The oil absorption number of a carbon black is related to the processing and vulcanizate properties of rubber compounds containing the carbon black.
4.2 The difference between the regular oil absorption number and the oil absorption number of compressed sample is some measure of the stability of the structure of the carbon black.
1.1 This test method covers the procedure for the mechanical compression of a carbon black sample and the determination of the oil absorption number of the compressed sample.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1765 Classification System for Carbon Blacks Used in Rubber Products
D1799 Practice for Carbon Black--Sampling Packaged Shipments
D1900 Practice for Carbon Black--Sampling Bulk Shipments
D2414 Test Method for Carbon Black--Oil Absorption Number (OAN)
D4483 Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing Industries
D4821 Guide for Carbon Black--Validation of Test Method Precision and Bias
ICS Number Code 83.040.20 (Rubber compounding ingredients)
UNSPSC Code 12171603(Carbon black)
ASTM D3493-16, Standard Test Method for Carbon Black—Oil Absorption Number of Compressed Sample (COAN), ASTM International, West Conshohocken, PA, 2016, www.astm.orgBack to Top