26. In Part A of Section 4.3 (acid processes)—
(a)at the end of paragraph (c) there shall be added the words “and excluding also any process where such a release could only occur as a result of the storage and use of SO2 in cylinders”;
(b)in paragraph (f), after the words “this Schedule)” there shall be inserted the words “which is not described in Part B of this Section, does not fall within a description in Section 2.1 or 2.2 of this Schedule and is not treated as so falling by virtue of the rules in Schedule 2, and”;
(c)in paragraph (g), after the word “manufacture” there shall be inserted the words “or purification”.