Within EN 17092, just as there are in EN 13595, there are specific requirements for CE certification. While the standard explains what tests need to be performed and how, it doesn’t necessarily explain why these specific elements are tested. We’re here to elaborate on a few of them.
The determination of impact abrasion resistance- One of the biggest differentiators between the professional and leisure standard - though both are requirements - is in the way in which determination of impact abrasion resistance is tested. It determines if a fabric can withstand/resist an impact abrasion slide. A hole bigger than 5mm when tested using the AART Machine (Advanced Abrasion Resistance Tester) equates to a fail. This test is in place so the outer shell of the fabric can take the hit: not your skin. The lowest outcome of a material is how it will be graded.
Tear strength- Here, a pre-slit specimen is “pulled apart” and we measure the force that’s necessary to further tear it. If you rip open your garment via a sharp object, we want to make sure that it’s very difficult to rip the fabric open further.
Seam strength- Seam strength is tested on the structurally strong seams, eg: the sleeve that’s attached to the body of a jacket. It measures the force necessary to rip the seam open. We want to make sure that if you fall off your bike, then slide, that the seams from vital connection points remain connected.
Dimensional stability- Dimensional what?! Exactly. This test requires a garment to be washed five times; not in a regular washing machine, but one that is specific for fabric testing, with water speed, volume, how fast it spins, temperature etc, all regulated. The purpose it to make sure the garment doesn’t shrink over time/washings, to ensure the correct fit, and to make sure the protectors in the garment stay in the proper location. There can be no more than five percent shrinkage, or it fails.
Innocuousness- This is another example. The amount of chemicals used - such as dyes - on the garment must be safe, especially when it comes into contact with your body. We test pH to make sure it’s gentle on the skin and no irritation occurs. Additionally, we also test any substances that are known to endanger the health of the user or that of the environment.