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Chemicals (Hazard Information and Packaging for Supply) Regulations (Northern Ireland) 2002
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Classification by the conventional method as corrosive
10.—(1) The following preparations shall be classified as corrosive and assigned the symbol “C”, the indication of danger “corrosive” and the risk phrase R35 –
(a)preparations containing one or more substances classified as corrosive to which is assigned the risk phrase R35 in individual concentrations equal to or 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 of this Schedule (Table IV or Table IVA) where the substance or substances do not appear in the approved supply list or appear in it without concentration limits;
(b)preparations containing more than one substance classified as corrosive to which is assigned the risk phrase R35 in lower individual concentrations than the limits specified either in the approved supply list or in paragraph 4 of Part II of this Schedule (Table IV or Table IVA) if the sum of the quotients obtained by dividing the percentage weight of each corrosive substance in the preparation by the corrosive limit R35 specified for that substance is 1 or more, i.e. –
where –
PC·R35 is the percentage by weight or by volume of each corrosive substance to which is assigned the risk phase R35 in the preparation,
LC·R35 is the corrosive limit R35 specified for each corrosive substance to which is assigned the risk phase R35 expressed as a percentage by weight or by volume.
(2) The following preparations shall be classified as corrosive and assigned the symbol “C”, the indication of danger “corrosive” and the risk phrase R34 –
(a)preparations containing one or more substances classified as corrosive to which is assigned the risk phrase R35 or R34 in individual concentrations equal to or 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 of this Schedule (Table IV or Table IVA) where the substance or substances do not appear in the approved supply list or appear in it without concentration limits;
(b)preparations containing more than one substance classified as corrosive to which is assigned the risk phrase R35 or R34 in lower individual concentrations than the limits specified either in the approved supply list or in paragraph 4 of Part II of this Schedule (Table IV or Table IVA) if the sum of the quotients obtained by dividing the percentage weight of each corrosive substance in the preparation by the corrosive limit R34 specified for that substance is 1 or more, i.e. –
where –
PC·R35 is the percentage by weight or by volume of each corrosive substance to which is assigned the risk phase R35 in the preparation,
PC·R34 is the percentage by weight or by volume of each corrosive substance to which is assigned the risk phase R34 in the preparation,
LC·R34 is the respective corrosive limit R34 specified for each corrosive substance to which is assigned the risk phase R35 or R34 expressed as a percentage by weight or by volume.
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