2.5.4.: Additional Classification Considerations

For this group of gases, the following information is required to be known:

— the vapour pressure at 50 °C;

— the physical state at 20 °C at standard ambient pressure;

— the critical temperature.

▼M4

Data can be found in the literature, calculated or determined by testing. Most pure gases are already classified in the UN RTDG, Model Regulations.

▼B

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