Safety signs
Placarding storage areas
Where gases are stored in excess of the quantities shown in Table 1 (an extract of Schedule 1 of the Dangerous Goods Safety Management Regulation 2001 (PDF, 658 KB), placarding is required to be erected.
Table 1 Gas quantities requiring placards
|
Gas class |
Quantity (water capacity in litres) |
|
Class 2.1 |
500 (e.g. 10 G size cylinders) |
|
Class 2.2, sub-risk 5.1 |
2,000 (e.g. 40 G size cylinders) |
|
Class 2.2 (without sub-risk) |
5,000 (e.g. 100 G size cylinders) |
|
Class 2.3 |
50 (e.g. 1 G size cylinders) |
Where the placarding quantities in Table 1 have been exceeded an Outer warning placard stating 'HAZCHEM' as shown in Figure 2, must be visible from every entrance to the premises.
Figure 2 Outer warning placard
Information placards are required to be placed at the following locations where gases are stored in excess of the placarding quantity:
(Note: Placarding is not required where the only gas present is liquefied petroleum gas in cylinders outside a building, connected to appliances by piping.)
- the main point of entry into a building
- at either the main point of entry to a room or enclosure or other area
- adjacent to the where the gas cylinders are being stored.
Information placards may take two forms:
- Those for tanks (gas cylinders that have a water capacity of 500L or more) need to be in the format shown in Figure 3 displaying, the proper shipping name, UN number, class diamond label and HAZCHEM Code.
- For package stores, the placard consists of the Class diamond for each class of gas stored in excess of the placarding quantity. The class diamonds must be at least 100 mm in diameter and not confused or obstructed by other signs or objects. (Note: Packages are those cylinders that are less than 500 litres water capacity.)
Figure 3 Tank information placard
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