Carbon Black N-991 UP
There are some applications where Carbon Black requires ultra purity. It means concentration of heavy metals and other impurities should be at extremely low levels to fulfil additional norms and customer requirements.
TECHNICAL SPECIFICATION
| QUALITY PARAMETER | VALUE | TEST METHOD |
|---|---|---|
| Iodine adsorption number [g/kg] | 9±3 | ASTM D 1510 |
| Oil absorption number [cm3/100g] | 42±5 | ASTM D 2414 |
| pH-value | 7-11 | ASTM D 1512 |
| Heating loss at 125°C [%], max. | 0.4 | ASTM D 1509 |
| Ash content [%], max. | 0.2 | ASTM D 1506 |
| Sieve residue: 0.045 [%], max. | 0.08 | ASTM D 1514 |
Note: The above-mentioned values do not constitute a specification or certification for a particular shipment,
but merely represent values, based on analysis of spot samples from previous productions.