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The Alkali, & c. Works Order (Northern Ireland) 1991
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- 1991 No. 49
- SCHEDULE 2
- LIST OF WORKS
- Section 1
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(1) Works in which the manufacture of sulphuric acid is carried on by the lead chamber process, namely, the process by which sulphurous acid is converted into sulphuric acid by the agency of oxides of nitrogen and by the use of a lead chamber or by any other process involving the use of oxides of nitrogen.
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