The Chemicals (Hazard Information and Packaging for Supply) Regulations (Northern Ireland) 2009 No. 238

SCHEDULE 3 PROVISIONS FOR CLASSIFYING DANGEROUS PREPARATIONS

PART II CONCENTRATION LIMITS TO BE USED IN THE EVALUATION OF HEALTH HAZARDS

Gaseous preparations

3.2  For gases that produce severe effects after repeated or prolonged exposure (R48/route of exposure), the individual concentration limits specified in Table IIIA, expressed as a volume/volume percentage, determine, when appropriate, the classification of the preparation.

Table IIIA

Classification of the substance (gas)	Classification of the preparation
	T	Xn
(*) In order to indicate the route of administration/exposure the combined R phrases listed in Annex III of Council Directive 67/548/EEC shall be used.
T with R48/ route of exposure	concentration ≥ 5% R48(*) obligatory	0.5% ≤ concentration < 5% R48(*) obligatory
Xn with R48/ route of exposure		concentration ≥ 5% R48(*) obligatory