How to Test A Tool Lanyards Safe Working Load

All structurally rated fall arrest tool lanyards must undergo both dynamic and static testing. These tests follow the same models used for PPE, such as safety harnesses and lanyards, and align with the procedures outlined in article 11B of the Council Directive.

Manufacturers should test dropped tool prevention products using a 10kg mass. Many products, especially those sold outside the EU, are rated to only 2kg. We recommend a safe working load (SWL) of at least 5kg. Apply these tests to all structurally rated items, including tool lanyards, belts, tethers, tool bags, and holsters.

“It is vital to load the karabiner along its length, never across its width.”

Dynamic drop test

In the dynamic test, a fall arrest lanyard attaches to a solid 10kg mass. The system drops the mass through a 4m free fall (Fall Factor 2).

First, raise the test mass vertically above the anchorage point. Secure the tool safety product—such as a tether, belt, or lanyard—to the anchorage using a connector. Then attach a 2m length of static rope between the mass and the product using a separate connector.

Release the mass and allow it to fall freely, generating impact over a 4m distance. The system does not include a shock absorber, so it does not reduce force or impact.

For heavy-duty products rated up to 50kg, increase the test mass to 100kg and repeat the same 4m drop.

To pass, the product must remain structurally intact with no signs of damage or weakening. Repeat the test three times using the same item to confirm durability.

Static test

The static test includes two stages.

First, apply a direct load of 0.55kN (just over 55kg) and hold it for three minutes. The product must not release the load. For heavy-duty items rated to 50kg, increase the load to 5.5kN (550kg).

Next, carry out a destructive pull test. This confirms that the product meets its required safe working load.

Leading Edge safety standards!

All certified Leading Edge height safety products feature a 47x safety factor. We deliberately over-engineer every product to exceed real-world demands. This approach improves durability, extends service life, and ensures consistent performance.

That’s why our customers trust us to keep them working safely at height.