EN ISO 20471 (EN 471): High Visibility

EN ISO 20471 (EN 471): Hi-Visibility (Hi-Vis) Warning Clothing Standard

This EN Norm specifies the requirements for clothing designed to emphasize the wearer’s presence visibly in order to make the wearer more noticeable in hazardous situations during the day and at night (illumination in car headlights).

EN ISO 20471 (EN 471): High visibility

Hi-Visibility EN Symbol EN ISO 20471 (EN471): Hi Visibility

(Hi-Visibility EN Symbol EN ISO 20471 (EN471))

This EN Norm specifies the requirements for clothing designed to emphasize the wearer’s presence visibly in order to make the wearer more noticeable in hazardous situations during the day and at night (illumination in car headlights).

EN 471 High visibility warning clothing has two different
performance classes:

1.   x: the surface of fluorescent and retro-reflective material
(3 levels)
The proportion of fluorescent background material and
retroreflective material.

2. y: the performance of the retro-reflective material (2 levels)
There are two performance classes for retro-reflective material
(the commonly used class 2 and the very rarely seen lower
performing class 1)