EN 471

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EN 471 - Protection via high visibility during the day, at dusk and during the night

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EN 471:2003 High-visibility warning clothing for professional use –
Test methods and requirements.

This standard specifies the requirements for clothing designed to emphasize the wearer's presence visibly in order to make him/her more noticeable in hazardous situations during the day and at night (illumination in car headlights).

The contents of this standard
This standard's pictogram is a safety vest placed under two numbers that represent the X and Y values\\. The top value (X) indicates the garment's class (1 to 3). Class 1 is the least and Class 3 the most visible. The lower value (Y) specifies the quality of the reflective strips (1 or 2) incorporated in the garment. The Y value indicates how well the reflective strip reflects. Van Puijenbroek Textiel only uses reflective strip with a Y value of 2 (= the highest class).

The X and Y values
The X value is derived from the number of square metres of fluorescent fabric and the number of square metres of reflective strip incorporated in a garment.

	Class 1	Class 2	Class 3
Fluorescent material	0,14	0,50	0,80
Reflective material	0,10	0,13	0,20
Combined material	0,20

Class 1: not suitable for working on public highways
Class 2: for roadwork with traffic travelling at a max. speed of 50 km/hour
Class 3: for roadwork with traffic travelling at higher permissible speeds

The fluorescent fabric must encircle the torso, sleeves and trouser legs. And the difference in surface area between the front and back may be a maximum of 40% – 60%.
The reflective strip must be 50 mm wide and the space between 2 reflective strips must be at least 50 mm. The distance from ‘the end’ of the garment (e.g. the end of a trouser leg) to the reflective strip must also be at least 50mm.
Reflective strips can be positioned in a variety of different ways; a number of examples are given in Appendix A.

The Y value is determined by the quality of the reflective strip and can be 1 or 2. Y value 2 has the best reflective properties. Van Puijenbroek Textiel only uses reflective strip with a Y value of 2.

The requirements set in this standard

Models must meet the requirements specified in EN 340

Fluorescent fabric must be visible (shown in test results). The fabric used for contrast must also meet specific requirements (it may not, for example, fade)

The fluorescent fabric must encircle the torso, sleeves and trouser legs

The front and back must have approximately the same surface area of fluorescent fabric; the maximum permitted ratio is 40%-60%. Anything outside of this is not included in the surface area calculation

The calculation of the surface area is based on the smallest size; which class belongs with which surface area is given in the table on the previous page

Striping must be at least 50 mm wide

Two bands of striping must be separated from each other by at least 50 mm

Striping must be placed at least 50mm from the ‘end’ of the garment (for example, the end of a trouser leg).

EN 471 is currently being updated and will eventually become “ISO /DIS 20471”. ISO 20471 will probably replace the two standards for high-visibility clothing (EN 471 for professional use and EN 1150 for non-professional use). The distinction between “professional” and “non-professional” will also probably be replaced by different risk categories. The definite categorisation has not yet been agreed. The standards can only be reviewed after this has been done. Points that are still being discussed are, for example, “definitions of day and night risks” and “necessary clothing for specific situations”.

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