EUMOS 40509 explained: the acceleration test for pallet loads
Why the test exists
A pallet on a truck is pushed by the vehicle every time it brakes, turns or hits a bump. For road transport the reference forces are 0.8 g forward under braking and 0.5 g sideways and backward. Those values come from the IMO/ILO/UNECE Code of Practice for Packing of Cargo Transport Units (the CTU Code) and the load securing standard EN 12195-1.
The European Commission states that up to 25 % of truck accidents are linked to poorly secured cargo. Damaged goods, claims and returned pallets cost far more often than accidents, and the consignor who packs the load is responsible for making it fit for normal transport.
EUMOS 40509 gives everyone in the chain the same way to answer one question: does this load unit stay together at the forces it will meet?
How the acceleration test works
- Before picture. The wrapped pallet stands straight on the test bench. This is the zero point.
- Acceleration and stop. The bench accelerates and stops the pallet at the required level.
- Filming. The load is filmed in slow motion during the test. EUMOS 40509 requires at least 80 frames per second. Markers on the load make the movement easy to follow.
- Measuring the lean. The lean of the load is measured as a percentage of the load height, twice:
- Elastic (dynamic) deformation: the peak lean during the test.
- Permanent deformation: what remains when the load has settled.
- Inspection. Goods and packaging are checked for damage.
The pass limits
| Result | Limit |
|---|---|
| Elastic (dynamic) deformation | at most 10 % of the load height |
| Permanent deformation | at most 5 % of the load height |
| Goods and packaging | no damage |
Example from a test in the app: elastic deformation 7.2 % and permanent deformation 2.1 %. Both are within the limits, so the load unit passes.
Certified, or based on the limits?
The wording matters, and buyers notice it.
- “EUMOS 40509 certified acceleration test” may only be used when the test is performed on an acceleration bench model approved by EUMOS (such as SwiftBench), calibrated within the last 12 months, run by a trained operator and documented according to the standard. The approval covers the bench model. It does not certify the customer, the operator or a particular load.
- “Based on the limits of EUMOS 40509” is the correct wording for a test on other equipment, for example a video analysis of a pallet stopped on a forklift or a non-approved bench.
Where EUMOS 40509 fits in a film test
When a distributor tests a thinner or stronger film at a customer, the question is always the same: does the load still hold with less film? Most of that can be answered on site:
- Tilt test: a phone or tablet measures the angle as the pallet is tilted. 27° is about 0.5 g sideways.
- Containment force: how hard the film holds the load, measured with a gauge.
- Acceleration test: the dynamic test described above, when a bench is available.
Palletseal records all three for the same pallet and prints the results in the report next to the film saving, so the buyer sees both in one place.
Questions we often get
Is EUMOS 40509 a legal requirement?
No. It is a test method published by EUMOS, the European association for safer logistics. The legal duty is that a load must withstand the forces of normal transport. A EUMOS 40509 result is a recognised way to document that a load unit is rigid enough.
What are the pass limits?
Elastic (dynamic) deformation at most 10 % of the load height, permanent deformation at most 5 % of the load height, and no damage to the goods or packaging.
Which acceleration is used?
The test is run at the acceleration the load must withstand in transport. For road transport the reference values are 0.8 g forward and 0.5 g sideways and backward. EUMOS has published guidance on the minimum acceleration level for the test.
Can I call my test certified?
Only when it is performed on an approved acceleration bench that is calibrated, by a trained operator, and documented according to the standard. A test on other equipment can be reported as based on the limits of EUMOS 40509, not as certified.
Is a tilt test the same as EUMOS 40509?
No. A tilt test is a static check of how the load behaves at an angle, for example 27° for about 0.5 g sideways. It is quick and useful at the customer, but it does not replace a dynamic acceleration test.
