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The Explosives (Hazard Information and Packaging for Supply) Regulations (Northern Ireland) 2009

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Gaseous preparations

2.2  For gases that produce non-lethal irreversible effects after a single exposure (R39/route of exposure, R68/route of exposure), the individual concentration limits specified in Table IIA, expressed as a volume/volume percentage, determine, when appropriate, the classification of the preparation.

Table IIA
Classification of the substance (gas)Classification of the preparation
T+TXn
(*)

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.

(†)

R68 here refers to substances classified as harmful. Concentration limits for substances required to be labelled R68 but classified mutagenic are given in Table VI.

T+ with R39/ route of exposureconcentration ≥ 1% R39(*) obligatory0.2% ≤ concentration < 1% R39(*) obligatory0.02% ≤ concentration < 0.2% R68(*)(†) obligatory
T with R39/ route of exposureconcentration ≥ 5% R39(*) obligatory0.5% ≤ concentration < 5% R68(*)(†) obligatory
Xn with R68/ route of exposureconcentration ≥ 5% R68 (*)(†) obligatory

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