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The Environmental Protection (Prescribed Processes and Substances Etc.) (Amendment) Regulations 1994

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22.  For Section 3.6 of Schedule 1 (ceramic production) there shall be substituted the following Section—

Section 3.6Ceramic production


Firing heavy clay goods or refractory material in a kiln where a reducing atmosphere is used for a purpose other than coloration.


(a)Firing heavy clay goods or refractory material (other than heavy clay goods) in a kiln where the process does not fall within a description in Part A of this Section.

(b)Vapour glazing earthenware or clay with salts.

In this Section—

  • “clay” includes a blend of clay with ash, sand or other materials;

  • “refractory material” means material (such as fireclay, silica, magnesite, chrome-magnesite, sillimanite, sintered alumina, beryllia and boron nitride) which is able to withstand high temperatures and to function as a furnace lining or in other similar high temperature applications..

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