Safety signs
- Stores should be sign posted with appropriate safety signs to prohibit smoking, e.g. 'Danger: no smoking'
- Signs to restrict unauthorised entry are also appropriate.
Placarding storage areas
Placarding is required where ammonium nitrate is stored in excess of the quantities shown in the table below (an extract of Schedule 1 of the Dangerous Goods Safety Management Regulation 2001). (PDF, 658 KB)
Quantities requiring placards
|
Packing group |
Quantity of ammonium nitrate (kg) |
|
I (great danger) |
50 |
|
II (medium danger) |
250 |
|
III (minor danger) |
1,000 |
|
Mixed packing groups |
1,000 |
Where the placarding quantities have been exceeded an outer warning placard stating 'HAZCHEM' as shown below, must be visible from every entrance to the premises.
Information placards are required to be placed at the following locations where goods are stored in excess of the placarding quantity:
- 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 ammonium nitrate is being stored.
Information placards may take two forms:
- For package stores, the placard consists of the Oxidising Agent (class 5.1) label for each building, room or area where material is present 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
- Those for 'tanks' (i.e. containers that have a capacity of 400 kg or more, e.g. bulker bags.) need to be in the format shown in Figure 3 below, displaying the UN number, Proper shipping name, Class label and HAZCHEM code.
Tank information placard
Packages are those containers with a capacity of less than 400 kg net mass. Any container larger than 400 kg that is regarded as a 'tank'.
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