Can You Be Sure Your Garment Conforms To EN ISO 20471?
High Visibility Tested to Exceed Standards
A certificate from a test house guarantees that the garment or fabric sent to the test house has attained a standard. It is not a guarantee that bulk production meets the standard. However, Portwest test every roll of fabric and retroreflective tape with highly specialised equipment to guarantee that all production meets the EN ISO 20471 standard, not just a garment that was sent to the test house. EN ISO 20471 states the retroreflectometer reading should not be below 330 (cd/lx.m2) however Portwest insist on a reading of 400 (cd/lx.m2) plus.
In their quality control laboratory, Portwest use a Minolta Spectrometer to check every roll of fabric. This guarantees the fabric used in Portwest Hi Vis clothing is fully compliant with the EN ISO 20471 standard.
Retro Reflective Tape
Portwest brands include HiVisTex tape and HiVisTex Pro segmented tape. The spaces on HiVisTex Pro segmented tape allow for increased breathability and is much more flexible allowing stretch fabrics to move with the wearer.
Manufactured using premium glass bead technology that surpasses all standards in terms of manufacturing quality, washability, wear resistance and durability.
Reflective Properties That Last 50 Home Washes.
The minimum requirement for washability under EN ISO 20471 is 5 washes.
We know that many hi-vis tapes lose their reflective properties after 25 washes and some tapes last just the required 5 washes. With a Portwest high visibility garment, you can certain our HiVisTex retroreflective tape will last through 50 washes ensuring ultimate visibility in low light conditions wash after wash*
*Washing instructions on the garment label must be adhered to.