ISO 20471:2013 pdf free
ISO 20471:2013 pdf free.High visibility clothing一Test methods and requirements
High visibility clothing is grouped into three classes related to risk assessment. Each class shall have minimum areas ofhighvisibility materials incorporatedin the garment in accordance withTable 1. Garments shall comprise the required areas of background material and retroreflective material or alternatively shall comprise the required area of combined performance material. The area shall be measured on the smallest garment size available with all fasteners adjusted to the smallest configuration possible.
The garment shall be made up of high visibility material on all sides. To ensure visibility from all sides (360° visibility), it is important that horizontal retroreflective bands and fluorescent materials encircle torso, trouser legs and sleeves.
The performance class can be obtained using a single garment or a clothing ensemble, e.g. jacket and trousers. An assembly, e.g. a classified trouser and a classified jacket, can be classified as a higher class if the assembly meets the minimum requirement achieved by the actually visible area when wearing the garment. This higher class shall be additionally specified in both the information for use and on the labels of both garments (see Clause 8).
The background material shall encircle the torso and shall maintain a minimum width (height) of 50 mm.Interruptions of background material by retroreflective stripes are not counted. Bands of retroreflective material shall be at least 50 mm wide.
Garments only covering the torso shall have one or more bands of retroreflective material encircling the torso with a maximum inclination of±20° to the horizontal and bands of retroreflective material joining the torso band from the front to the back over each shoulder. The bottom of the lowest torso band shall be at least 50 mm above the bottom edge. If more than one horizontal band is applied the horizontal bands shall be at least 50 mm apart.
Alternatively, garments covering only the torso shall have two bands of retroreflective material at least 50 mm apart and encircling the torso with a maximum inclination of±20° to the horizontal. The bottom of the lowest torso band shall be at least 50 mm above the bottom edge.
Tabards shall be constructed so that a person of the size for which they are designed can wear the tabard so that any gaps at the sides shall not be greater than 50 mm horizontally.Any gap (for fastening systems and seams) in the lengthwise continuity of each band of retroreflective or combined performance material shall not be greater than 50 mm, measured parallel to the direction of the band, and the total of such gaps shall not be greater than 100 mm in any one band around the torso.ISO 20471 pdf free.
