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Dangerous Goods Classes

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A Typical Emergency Information Panel

Images of a typical emergency information panel

The HAZCHEM Code

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It is an initial emergency response code, with up to three symbols, e.g. 2 R E, which indicate the firefighting and dispersion agents (1,2,3 and 4) the risks, personal protection and other measures (P,R,S,T,W,X,Y and Z), and whether or not to consider evacuation (E).

Other terms:

V - risk of violent reaction or explosion.
FULL - minimum of a chemical splash suit, breathing apparatus and impervious gloves and boots. In some cases, a fully sealedgas suit will be required (see Dangerous Goods - Initial Response Guide - HB76).
BA - breathing apparatus and impervious gloves.
DILUTE - may be washed away with large quantities of water, and, wherever practicable, should be contained and prevented from entering drains and watercourses.
CONTAIN - prevent any spillage from entering drains and watercourses.

Interpretation of 2RE

Water fog is the suggested agent. There is no risk of violent reaction. Full protection required. Dilute. Consider evacuation. (Also, check HB76 for each material.)