SECTION 4.8The Storage of Chemicals in Bulk
Part B
(a)The storage in tanks, other than in tanks for the time being forming part of a powered vehicle, of any of the substances listed below except where the total storage capacity of the tanks installed at the location in question in which the relevant substance may be stored is less than the figure specified below in relation to that substance—
(i)one or more acrylates, 20 tonnes (in aggregate);
(ii)acrylonitrile, 20 tonnes;
(iii)anhydrous ammonia, 100 tonnes;
(iv)anhydrous hydrogen fluoride, 1 tonne;
(v)toluene di-isocyanate, 20 tonnes;
(vi)vinyl chloride monomer, 20 tonnes;
(vii)ethylene, 8,000 tonnes.