What is a Pendulum Slip Test?

The pendulum slip test is a scientific method of measuring the slip resistance of a floor surface. It uses a device with a rubber foot that swings across the floor to mimic a heel striking the surface. As it passes over, it measures how much the foot slows down — which directly relates to how slippery the floor is.

The result is called the Pendulum Test Value (PTV). This number tells you whether your floor is considered low, moderate, or high slip risk. In general:

• PTV 36+ = low slip potential

• PTV 25-35 = moderate slip potential

• PTV below 24 = high slip potential

These readings can be taken in dry, wet, or contaminated conditions to see how your floor performs in real-world scenarios.

Why is the Pendulum Test Important?

The pendulum slip test isn’t just a box-ticking exercise. It gives clear, objective evidence of whether your floors are safe. This is essential for:

• Reducing accidents and injuries

• Complying with HSE guidance under the Workplace (Health, Safety and Welfare) Regulations

• Lowering insurance premiums and protecting against liability claims

• Meeting the requirements of insurers and local authorities

If someone slips and makes a claim against you, pendulum test results can be used in your defence to show you’ve taken reasonable steps to manage slip risks.

Where Should You Carry Out a Pendulum Slip Test?

Any floor with public or staff foot traffic can benefit from testing, but it’s especially important in:

• Hotel lobbies and restaurants

• Shopping centres and retail stores

• Hospitals and care homes

• Offices and reception areas

• Kitchens and industrial floors

• Pool areas and changing rooms

Wet or contaminated environments — such as entrances where rain is tracked in — are prime candidates for testing.