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NS-EN 474-1 :2006+A3:2013
Annex C
(informative)
EN 474-1 :2006+A3:2013 (E)
Requirements for no-text safety signs
C.1 General
Safety signs and hazard pictorials should follow the general principles in ISO 9244:1995 and be of general
nature understandable and preferably without text. They should be permanently affixed to earth-moving
machines and be shown and described in the operation manual. Their location on the machine should be
illustrated in the manual.
The warnings on the signs should be indelible and should be legible at the distance necessary to ensure the
safety of persons required being in the vicinity.
C.2 Safety alert symbol
The safety alert symbol (see Figure C.1) should be as outlined in ISO 9244:1995, Figure 7. It should be
primarily used to warn casual spectators approaching the machine while operating. The safety alert symbol
should also be used with hazard description pictorials (see Figures C.3 to C.5).
C.3 Non-text hazard pictorials
Additional hazard pictorials combined with a safety alert symbol (see Figures C.1 to C.5) should be used to
warn the operator or service personnel when doing maintenance or service work at the machine. The safety
signs should be in two-panel format with either vertical or horizontal figuration (see Figures C.2 to C.4).
C.4 Dimensions
Minimum recommended dimensions for two-panel format safety signs should be according to ISO 9244:1995,
Figure 13. Larger or smaller sizes may be used if required.
I
Safety signs, warning casual spectators approaching the machine while working, should be legible from
outside the danger zone.
C.S Colours of safety signs
The colours of pictorial panels, border and panel separation lines should follow ISO 9244:1995, 9.2.2, 9.2.3,
9.2.4 and 9.5.
C.6 Location
Warning signs and hazard pictorials should be distinctively located at a clearly visible location as close as
practical to the hazardous area or part of the machine.
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