PART B
(a)
The following activities if operated at installations not falling within any other description in any Part A of this Schedule involving the mixing, milling or blending of–
(i)
natural rubber; or
(ii)
synthetic organic elastomers,
if carbon black is used.
(b)
Any activity which converts the product of an activity falling within paragraph (a) into a finished product, if related to a activity falling within that paragraph.