NEN-ISO 18852
Rubber compounding ingredients - Determination of multipoint nitrogen surface area (NSA) and statistical thickness surface area (STSA)
| Organization: | NEN |
| Publication Date: | 1 June 2015 |
| Status: | active |
| Page Count: | 19 |
| ICS Code (Rubber compounding ingredients): | 83.040.20 |
scope:
NEN-ISO 18852 specifies a method for the determination of the nitrogen surface area (NSA)of carbon blacks and other rubber compounding ingredients, like silicas and zinc oxides, based on theBrunauer, Emmett and Teller (BET) theory of gas adsorption using a multipoint determination as wellas the determination of the statistical thickness surface area (STSA), otherwise known as the externalsurface area. STSA, however, is not applicable to silica and zinc oxide.The method can also be used for verifying "single-point" procedures described in ISO 4652 and other standards.
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