BS ISO 4656:2012
$142.49
Rubber compounding ingredients. Carbon black. Determination of oil absorption number (OAN) and oil absorption number of compressed sample (COAN)
| Published By | Publication Date | Number of Pages |
| BSI | 2012 | 28 |
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.
This International Standard 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 Annex A.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 3 | CVP_Secretariat_Loca |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Principle |
| 8 | 4 Reagents 5 Apparatus |
| 9 | 6 Sample preparation 7 Conditions of test 8 Procedure 8.1 Checking of the absorptometer and constant-rate burette 8.2 Calibration and normalization of the absorptometer |
| 10 | 8.3 Test portion |
| 11 | 8.4 Determination 9 Expression of results 10 Precision and bias 11 Test report |
| 13 | Annex A (normative) Preparation of compressed test portions |
| 18 | Annex B (normative) Checking and adjustment of torque and hydraulic damping |
| 20 | Annex C (normative) Checking of the constant-rate burette |
| 22 | Annex D (informative) Precision and bias |
| 24 | Bibliography |
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