This International Standard specifies methods for the determination of the surface area of carbon blacks, excluding the area of micropores that are too small to admit molecules of hexadecyltrimethylammonium bromide (cetyltrimethylammonium bromide, com-monly referred to as CTAB).
The methods are suitable for characterizing rubber grade carbon blacks of all types.
BS 5293-12:1996 history
1996BS 5293-12:1996 Sampling and testing carbon black for use in the rubber industry - Methods for determination of surface area by surfactant adsorption