2.—(1) Subject to paragraphs 3 and 4, the provisions of this paragraph shall have effect in relation to the labelling of dangerous preparations.
(2) Subject to sub-paragraph (3), the particulars relating to the chemical name required to be shown on the label in accordance with regulation 7(3)(c)(i) shall be shown according to the following rules—
(a)in the case of a dangerous preparation classified as requiring the indication of danger T+, T or Xn, only substances requiring those indications of danger present in the dangerous preparation in concentrations equal to or greater than—
(i)the lowest limit (the Xn limit) for the substance laid down in Table 3.2 of part 3 of Annex VI of the CLP Regulation, or
(ii)where there is no such limit, the relevant limit laid down in Part II of Schedule 3,
have to be taken into consideration;
(b)in the case of a dangerous preparation classified as requiring the indication of danger C, only substances requiring that indication of danger present in the dangerous preparation in concentrations equal to or greater than—
(i)the lowest limit (the Xi limit) for the substance laid down in Table 3.2 of part 3 of Annex VI of the CLP Regulation, or
(ii)where there is no such limit, the relevant limit laid down in Part II of Schedule 3,
have to be taken into consideration;
(c)if the dangerous preparation is assigned one or more of the following danger categories:
carcinogen category 1, 2 or 3,
mutagen category 1, 2 or 3,
toxic for reproduction category 1, 2 or 3,
very toxic, toxic or harmful due to non-lethal effects after a single exposure,
toxic or harmful due to severe effects after repeated or prolonged exposure,
sensitising,
the name of any substance causing the dangerous preparation to be assigned shall be referred to;
(d)as a consequence of the provisions set out in paragraphs (a) to (c), the name of any substance which led to the classification of the dangerous preparation in the following danger categories:
explosive,
oxidising,
extremely flammable,
highly flammable,
flammable,
irritant,
dangerous for the environment,
need not be referred to on the label unless so required by paragraph (a), (b) or (c).
(3) The chemical name referred to in sub-paragraph (2) shall be—
(a)in the case of a substance listed in Table 3.2 of part 3 of Annex VI of the CLP Regulation, the name or one of the names under which that substance is listed; or
(b)in the case of a substance not so listed, an internationally recognised name.
(4) For the purpose of labelling, no account shall be taken of a substance in the dangerous preparation where the concentration of that substance is less than the concentration referred to in paragraph 6 of Part I of Schedule 3.
(5) Subject to sub-paragraph (4), the particulars to be shown on the label in accordance with regulation 7(3)(c)(ii), (iii) and (iv) shall be determined from the classification of the dangerous preparation made in accordance with regulation 4 in conjunction with the approved classification and labelling guide.
(6) As a general rule, a maximum of four chemical names shall suffice to identify the substances primarily responsible for the major health hazards which have given rise to the classification and the choice of the corresponding risk phrases – although in some cases more than four chemical names may be necessary.