What Are Class 4 Dangerous Goods? A Quick Guide for Aussie Businesses
When it comes to dangerous goods, Class 4 can catch people out. These are substances that are flammable, reactive and can become a serious risk when handled or stored incorrectly. At DG Solutions Australia, we work with businesses across the country to ensure their Class 4 DG are shipped safely and in full compliance with the ADG Code.
If you're dealing with powders, solids or spontaneously combustible materials, this one’s for you.
Breaking Down Class 4 Dangerous Goods
The ADG Code splits Class 4 into three sub-divisions:
Class 4.1 – Flammable Solids
These are materials that can ignite easily through friction, heat or spontaneous reaction. Think metal powders, matches and self-reactive substances. They burn fast and can’t be treated like everyday freight.
Common examples:
- Matches
- Hand Wipes
Class 4.2 – Substances Liable to Spontaneous Combustion
These substances can catch fire on their own when exposed to air. Sounds wild, but it’s real and it’s why correct packaging and labelling are absolutely critical.
Common examples:
- Phosphorus
- Charcoal
- Fishmeal (yes, really)
Class 4.3 – Dangerous When Wet
These react violently with water, often releasing flammable gas. That includes rain, condensation or even a damp container. ADG requirements here are strict for good reason.
Common examples:
- Sodium
- Calcium carbide
- Lithium aluminium hydride
Why Class 4 DG Are a Big Deal
Improper handling of Class 4 substances can lead to fire, explosion or release of toxic gas, not what you want turning up in the back of a truck or container. Under the ADG Code, these goods must be:
- Correctly classified and packaged
- Clearly labelled with compliant placards
- Declared properly on shipping docs
- Handled by trained personnel
At DG Solutions Australia, we help exporters and freight forwarders across the country tick every one of these boxes.
How DG Solutions Australia Can Help
We specialise in dangerous goods documentation and remote consultations to make sure your shipments are 100 percent legal and safe. Whether you're new to Class 4 or moving this stuff regularly, our team gives you peace of mind with no-nonsense advice and fast turnaround times.
If your freight includes flammable solids, self-heating substances, or anything dangerous when wet, you’re dealing with Class 4 DG. Don’t leave it to chance. At DG Solutions Australia, we’ll make sure your shipments are fully compliant with the latest ADG Code and ready to move without delay.
Need help with Class 4 Dangerous Goods?
Get in touch with the team at DG Solutions Australia today.