# The Explosives (Hazard Information and Packaging for Supply) Regulations (Northern Ireland) 2009, Paragraph 5.2: Gaseous preparations

Extent: N.I.

Gases that produce such effects are classified as sensitising and assigned:
the symbol Xn and phrase R42 if this effect can be produced by inhalation,
the symbol Xi and phrase R43 if this effect can be produced by inhalation and through contact with the skin.
The individual concentration limits specified in Table VA expressed as a volume/volume percentage, determine, when appropriate, the classification of the preparation.
Table VA
Classification of the substance (gas)
Classification of the gaseous preparation
Sensitising with R42
Sensitising with R43
Sensitising with R42
concentration ≥ 0.2% R42 obligatory
Sensitising with R43
concentration ≥ 0.2% R43 obligatory

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Source: https://www.legislation.gov.uk/nisr/2009/273/schedule/3/paragraph/5.2 (the official version)
Page: https://openlegislation.uk/explosives-hazard-information-and-packaging-for-supply-regulations-northern-ireland-2009/schedule-3/paragraph-5.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.