SCHEDULE 4 CLASSIFICATION PROVISIONS FOR PREPARATIONS DANGEROUS FOR SUPPLY

PART I GENERAL PROVISIONS

7 Classification by the conventional method as toxic
The following preparations shall be regarded as toxic—
(a) owing to their acute lethal effects, preparations containing one or more substances classified or regarded as very toxic or 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) 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 or toxic in individual concentrations not exceeding the limits specified in the approved supply 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 or toxic substance in the preparation by the toxic limit specified for that substance is 1 or more, i.e.—
∑(PT+LT+PTLT)≥1
where–
PT+ the percentage by weight of each very toxic substance in the preparation,
PT the percentage by weight of each toxic substance in the preparation,
LT the toxic limit specified for each very toxic or 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 orTable IIA) where the substance or substances do not appear in the approved supply list or appear in it without concentration limits;
(d) owing to their long term effects after repeated or prolonged 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 3 of Part II of this Schedule (Table III or Table IIIA 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.