(a)Manufacturing glass fibre.
(b)Manufacturing glass frit or enamel frit and its use in any activity where that activity is related to its manufacture and the aggregate quantity of such substances manufactured in any period of 12 months is likely to be 100 or more tonnes.
(a)Manufacturing glass, unless falling within Part A(1) of this Section, where the melting capacity of the plant is more than 20 tonnes per day.
Unless falling within Part A(1) or Part A(2) of this Section—
(a)Manufacturing glass at any location with the capacity to make 5,000 or more tonnes of glass in any period of 12 months, and any activity involving the use of glass which is carried on at any such location in conjunction with its manufacture.
(b)Manufacturing glass where the use of lead or any lead compound is involved.
(c)Manufacturing any glass product where lead or any lead compound has been used in the manufacture of the glass except—
(i)making products from lead glass blanks; or
(ii)melting, or mixing with another substance, glass manufactured elsewhere to produce articles such as ornaments or road paint.
(d)Polishing or etching glass or glass products in the course of any manufacturing activity if—
(i)hydrofluoric acid is used; or
(ii)hydrogen fluoride may be released into the air.
(e)Manufacturing glass frit or enamel frit and its use in any activity where that activity is related to its manufacture.