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

Gaseous preparations

This section has no associated Explanatory Memorandum

1.2  The concentration limits expressed as a volume/volume percentage in Table IA determine the classification of the gaseous preparations in relation to the individual concentrations of the gas(es) present whose classification is also shown.

Table IA
Classification of the substanceClassification of the preparation
T+TXn

The R phrases denoting risk shall be assigned to the preparation in accordance with the following criteria—

(i)

the label shall include one or more of the above mentioned R phrases according to the classification used,

(ii)

in general, the R phrases selected should be those applicable to the substance(s) present in the concentration which gives rise to the most severe classification.

T+ with R26, R27, R28concentration ≥ 1%0.2% ≤ concentration <1%0.02% ≤ concentration < 0.2%
T with R23, R24, R25concentration ≥ 5%0.5% ≤ concentration < 5%
Xn with R20, R21, R22concentration ≥ 5%