EN ISO 20471

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EN ISO 20471 (replaces EN 471)

High visibility clothing

Discover all EN 20471 standard products

Standard workwear EN ISO 20471

Protection to signal the wearer day and night

Protection of people walking on the road during a construction site or a temporary danger, by making them visible by day and night, in the light of the headlights.

Composition of clothing EN 20471

  • Fluorescent fabrics for daytime visibility.
  • Retro-reflective strips for night visibility in headlights.

Classification of clothing EN 20471

There are 3 classes; the higher the class of the garment, the greater the retro-reflective and fluorescent surfaces and the better the visibility.

The class of the garment is therefore determined using 2 criteria:

  • Fluorescent fabric surface (Yellow, Orange or Red)
  • The surface of retroreflective strips or materials
Area measured on the smallest size
CLASS OF THE GARMENTFLUORESCENT (m²)REFLECTING (m²)
10,140,10
20,500,13
30,800,20

Be aware of the rules for marking high visibility clothing. If a fluorescent fabric area is covered, the garment may be downgraded

Risk level Factors related to the level of risk Product features
Vehicle speed Type of road user
High risk ISO 20471 class 3 > 60 Km/h Liabilities High Visibility – 360° day and night visibility (visibility from all sides)
– Design to identify the shape surrounding the torso
– Quantity & quality adapted to the day and night
High risk ISO 20471 class 2 <= 60 Km/h
High risk ISO 20471 class 1 <= 30 Km/h – 360° day and night visibility (visibility from all sides)
– Design to identify the shape
– Quantity & quality adapted to the day and night

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