# The Planning (Hazardous Substances) Regulations 1992, Part D: INTERPRETATION


In this Schedule—
(a) references to percentages are references to parts by weight of the substance per 100 parts by weight of the solution;
(b) “compound fertiliser” means a fertiliser containing ammonium nitrate and phosphate or potash;
(c) Part C does not include a substance which is within Part A or Part B;
(d) a substance, or any mixture of substances, shall only be treated as a hazardous substance by virtue of satisfying a description in entry number 37, 66, 67, 68, 69 or 70 when it is in a state in which it satisfies the description;
(e) the controlled quantity of 25 tonnes in entry 69 refers, in the case of a mixture of substances, to the quantity of substances within that mixture held above their boiling point (measured at 1 bar absolute);
(f) the controlled quantity of 50 tonnes in entry 70 refers, in the case of a mixture of substances, to the quantity of substances within that mixture having boiling points below 0°C.

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Source: https://www.legislation.gov.uk/uksi/1992/656/schedule/1/part/D (the official version)
Page: https://openlegislation.uk/planning-hazardous-substances-regulations-1992/schedule-1/part-D
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.