SCHEDULE 4 CLASSIFICATION PROVISIONS FOR PREPARATIONS DANGEROUS FOR SUPPLY

PART I GENERAL PROVISIONS

6 Classification by the conventional method as very toxic
The following preparations shall be regarded as very toxic—
(a) owing to their acute lethal effects, preparations containing one or more substances classified or regarded as very toxic in concentrations exceeding—
(i) either the concentration specified in the approved supply list for the substance or substances under consideration, or
(ii) the concentration specified in paragraph 1 of Part II of this Schedule (Table I or Table IA in the case of gases) where the substance or substances do not appear in the approved supply list or appear in it without concentration limits;
(b) owing to their acute lethal effects, preparations containing more than one substance classified or regarded as very toxic in individual concentrations not exceeding the limits specified in the approved list or in paragraph 1 of Part II of this Schedule (Table I or Table IA), if the sum of the quotients obtained by dividing the percentage weight of each very toxic substance in the preparation by the very toxic limit specified for that substance is 1 or more, i.e.—
∑(PT+LT+)≥1
where—
PT+ the percentage by weight of each very toxic substance in the preparation,
LT+ the very toxic limit specified for each very toxic substance expressed as a percentage.
(c) owing to their non-lethal irreversible effects after a single exposure, preparations containing one or more substances dangerous for supply which produce such effects in individual concentrations exceeding—
(i) either the concentration specified in the approved supply list for the substance or substances under consideration, or
(ii) the concentration specified in paragraph 2 of Part II of this Schedule (Table II or Table IIA in the case of gases) where the substance or substances do not appear in the approved supply list or appear in it without concentration limits.