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SRPS ISO 4656:2014

Rubber compounding ingredients — Carbon black — Determination of oil absorption number (OAN) and oil absorption number of compressed sample (COAN)

Apr 30, 2014

General information

90.93     Jul 1, 2022

90.20    Jul 15, 2027

ISS

G045

International Standard

83.040.20  

English  

Iz plana za 2013.

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Scope

Oil absorption number (OAN) is a measure of the ability of a carbon black to absorb liquids. This property is a function of the structure of the carbon black. Either dibutyl phthalate (DBP) or paraffin oil is acceptable for use with standard pelleted grades, including N‑series carbon blacks found in ASTM D1765, although OAN testing using paraffin oil on some speciality blacks and powder blacks might result in unacceptable differences as compared to OAN testing using DBP oil. While studies have shown the two oils to give comparable precision, paraffin oil offers the advantage of being non-hazardous.
ISO 4656:2012 specifies a method using an absorptometer for the determination of the oil absorption number of carbon black for use in the rubber industry.
The same method is used for the determination of the oil absorption number of compressed samples of carbon black. The procedure for the preparation of the compressed samples is described in an annex.

Life cycle

PREVIOUSLY

WITHDRAWN
SRPS H.M8.119:1982

NOW

PUBLISHED
SRPS ISO 4656:2014
90.93 Standard confirmed
Jul 1, 2022

Related project

Adopted from ISO 4656:2012