The Pollution Prevention and Control Regulations (Northern Ireland) 2003

SECTION 3.6 CERAMIC PRODUCTION

Part A

Manufacturing ceramic products (including roofing tiles, bricks, refractory bricks, tiles, stoneware or porcelain) by firing in kilns, where–

(i) the kiln production capacity is more than 75 tonnes per day; or

(ii) the kiln capacity is more than 4m³ and the setting density is more than 300 kg/m³.

Part B

(a) Unless falling within Part A of this Section, firing heavy clay goods or refractory materials (other than heavy clay goods) in a kiln where a reducing atmosphere is essential or with a production capacity exceeding 50 tonnes per day.

(b) Vapour glazing earthenware or clay with salts.

Part C

(a) Unless falling within Part A or Part B of this Section, firing heavy clay goods or refractory materials (other than heavy clay goods) in a kiln.

Interpretation of Parts B and C

In these Parts–

“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.