Chemicals (Hazard Information and Packaging) Regulations (Northern Ireland) 1993 No. 412

SCHEDULE 4 Classification provisions for preparations dangerous for supply

PART I GENERAL PROVISIONS

Classification by the conventional method as corrosive

9.—(1) A preparation shall be regarded as “very corrosive” if it has been classified as corrosive with the risk phrase R35 (causes severe burns).

(2) The following preparations shall be regarded as very corrosive—

(a) preparations containing one or more substances classified or regarded as very corrosive 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 4 of Part II (Table IV or Table IVA in the case of gases) where the substance or substances do not appear in the approved list or appear in it without concentration limits;

(b) preparations containing more than one substance classified or regarded as very corrosive in individual concentrations not exceeding the limits specified either in the approved supply list or in paragraph 4 of Part II (Table IV or Table IVA in the case of gases) if the sum of the quotients obtained by dividing the percentage by weight of each very corrosive substance in the preparation by the corrosive (R35) limit specified for that substance is 1 or more, that is to say,

where—

• P_C.R35 is the percentage by weight of each very corrosive substance to which is assigned the risk phrase R35 in the preparation,

• L_C.R35 is the corrosive (R35) limit specified for each very corrosive substance expressed as a percentage by weight.