If you're handling or transporting dangerous goods in Australia, chances are you've come across Class 3 Flammable Liquids. These are some of the most common DG items moving through our ports, roads and skies, but do you really know what makes a liquid "flammable" and what that means for your compliance?
At DG Solutions Australia, we work with Aussie exporters, manufacturers and freight forwarders every day to keep goods moving safely and legally. So here’s a no-nonsense breakdown of what flammable liquids are, why they matter and what your business needs to know.
What Counts as a Flammable Liquid?
In Australia, flammable liquids fall under Class 3 Dangerous Goods as defined in both the ADG Code and IATA regulations. Put simply, a flammable liquid is any liquid that can ignite easily at normal working temperatures.
The key technical term here is "flash point" the lowest temperature at which the liquid gives off enough vapour to catch fire when exposed to an ignition source. If the flash point is below 60°C, it’s considered a flammable liquid.
Common examples include:
- Petrol
- Paint thinners
- Ethanol
- Acetone
- Diesel (yes, in some conditions)
Even some hand sanitisers and cleaning products fall into Class 3 depending on their alcohol content.
Why Classification Matters
Proper classification is more than just a tick box. Getting it wrong could mean rejected freight, fines, or worse serious safety incidents.
If you're exporting or transporting goods that fall under Class 3, you'll need to meet strict packaging, labelling and documentation requirements under Australian DG laws. That includes using approved UN packaging, correct placards and compliant paperwork like IATA Shipper’s Declarations or IMDG documentation.
Risks with Flammable Liquids
These liquids are volatile. Spills, leaks or exposure to heat can lead to rapid ignition or explosive vapours, especially in enclosed spaces like containers or warehouses. That’s why the ADG Code and other transport rules in Australia have very clear requirements around segregation, stowage and emergency response.
It's also worth noting that many flammable liquids can be harmful if inhaled or come into contact with skin. So PPE and proper ventilation are essential.
How to Stay Compliant in Australia
If you're working with Class 3 goods, make sure you:
- Know the product’s flash point and SDS details
- Use certified DG packaging and labels
- Prepare the correct transport documentation
- Keep training up to date for anyone handling or signing off DG shipments
It can be a bit of a maze, especially when you’re juggling domestic and international freight but getting it right protects your people, your cargo and your business.