BS EN 17353-2020 Protective clothing – Enhanced visibility equipment for medium risk situations – Test methods and requirements.
S.3 Type B
5.3.1 General
These garments or devices shall in their design use at least the minimum amount of retroreflectwe material according to Table 2 or Table 3.
5.32 Type BI – Free hasging devices
The devices shall be removable.
The total area of the devices in use shall meet the requirements in Table 2.
A Type Ill device shall be re roreflective from both sides.
Its optical active area shall be a minimum 15 cm2 per side. The total area shall be maximum 50 cm per side. In order to achieve 360° vIsibility (visibility from all sides) a least two devices shall be used, these shall be used on the left and the right side of the tosso This shall be specified in the user intorm.ation.
The device shall be flat and Its maxiniurn thickness shall be 10 mm.
The means of attachment (string. nbbon. cord, spiral. etc.) shall be a minimum 10 cm. in length between the poultsol attachment on the garment and that on the reflector to enable free movement oF the device around its vertical axis and allow a pendulum effect
NOTE Consider additional requlrementt applicable for children’s products.
5.3.3 Type B2 – Equipment for limbs
The mininluni area of retroreflectlve material shall fulfil the requirements in Table 2.
To ensure 3600 visibility (visibility from all sides). on, or more devic, shall be applied In each upper and/or each lower limb,
When rciroreflectivc riusterlal lx applied to a garment It shall also be positioned to achieve 360° visibility (visibility from all sidec) The material shall be placed on the limbs so as to ensure a minimum width o(20 mm encircling each limb.
Any gap in the lengthwise continuity of the retroreflective material shall not be greater than SO mm, measured parallel to the direction of the material, and the total of such gaps shall not be greater than 50 mm around the limbs. Any offset no greater than the width of the material plus 5 mm is allowed.
Additionally, separate rrtrors’flcctivr elements may Form part of an applied design In conjunction with the above The rvtrorefiective elements shall have a minimum area of 25cm2 each
In the cn,e of 112 garnwnta covering upper and lower limbs, the retrordlective imitertal can be applied on the upper limbs only, on the lower limbs only or on bcih thc upper and lower limbs. In the latter case, the minimum amount of Table 2 shall be used for tipper limbs and also for the lower limbs.
dOTh An eicmipie ota R2 rawist is shown in Annex L
5.3.4 Type B3 – Equipment for the torso or the torso and limbs
The imnimum area of retroreflccuvr matenal shall fulfil the requirements In Table 3. Garments and devii:es shall be measured flat and In their smallest configuration.
Retroreflective material shall be placed on the torso so as to ensure a minimum width of 20 mm encircling the torso. Alteniatlvely. retrurcllectivc materials may be placed to encircle the upper arms.
If a 133 garment covers limbs below die elbows or knees, then retroreflectwe material on the limbs is required. In this case. Type 132 requIrements (see 5.33) for the limbs shall be fulfilled whilst the remainder of the material shall be placed on the torso. It is not necessary for a minimum 20 mm wide band to be applied on the limbs in this case.BS EN 17353 pdf download.