1. In applying measures to control risks the responsible person must, in order of priority—
(a)reduce the quantity of dangerous substances to a minimum;
(b)avoid or minimise the release of a dangerous substance;
(c)control the release of a dangerous substance at source;
(d)prevent the formation of an explosive atmosphere, including the application of appropriate ventilation;
(e)ensure that any release of a dangerous substance which may give rise to risk is suitably collected, safely contained, removed to a safe place, or otherwise rendered safe, as appropriate;
(f)avoid—
(i)ignition sources including electrostatic discharges; and
(ii)such other adverse conditions as could result in harmful physical effects from a dangerous substance; and
(g)segregate incompatible dangerous substances.