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UDC 614.8-084
IS0
INTERN AT1 ON AL ORGAN 1Z AT I O N FOR STAN DARD I ZATl O N
I SO R ECO M M EN DATI O N
R 408
SAFETY COLOURS
1st EDITION
December 1964
COPYRIGHT RESERVED
The copyright of IS0 Recommendations and IS0 Standards
belongs to IS0 Member Bodies. Reproduction of these
documents, in any country, may be authorized therefore only
by the national standards organization of that country, being
a member of ISO.
For each individual country the only valid standard is the national standard of that country.
Printed in Switzerland
Also issued in French and Russian. Copies to be obtained through the national standards organizations.
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BRIEF HISTORY
The IS0 Recommendation R 408, Safety Colours, was drawn up by Technical Committee
ISO/TC 80, Safety Colors, the Secretaiiat of which is held by the Stichting Nederlands Norma-
lisatie-instituut ("1).
Work on this question by the Technical Committee began in 1952 and led, in 1961, to the
adoption nf a Draft IS0 Recommerid-ttion.
In June 1962, this Draft IS0 Recommendation (No. 507) was circulated to all the IS0
Member Bodies for enquiry. It was approved, subject to a few modifications of an editorial
nature, by the following Member Bodies :
Belgium Hungary Republic of South Africa
Brazil Ireland Romania
Canada Israel Spain
Chile Italy
Sweden
Colombia Japan Switzerland
Czechoslovakia Mexico U.A.R.
Denmark New Zealand United Kingdom
France Norway
U.S.S.R.
Germany Pakistan Yugoslavia
Greece Portugal
No Member Body opposed the approval of the Draft.
The Draft IS0 Recommendation was then submitted by correspondence to the IS0 Coun-
cil, which decided, in December 1964, to accept it as an IS0 RECOMMENDATION.
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IÇO/R 408 - 1964 (E)
Decem ber 1964
IS0 Recommendation R 408
SAFETY COLOURS
1. PURPOSE
This IS0 Recommendation defines the meaning and application of a limited number of safety
colours and geometrical forms which should be used for the purpose of preventing accidents
and meeting certain emergencies.
2. SCOPE
Safety colours should attract attention so as to afford a rapid indication of dangers, and to
facilitate their identification. They may also be used to indicate the location of devices and
equipment of special importance from the point of view of safety.
Safety colours do not by themselves eliminate any danger, and coloured safety instructions
cannot be substituted for proper accident prevention measures.
3. SAFETY AND AUXILIARY COLOUR
3.1 General meaning assigned to safety colours
L
~~~~ ~~~
Colour Meaning Examples of application
I
Stop signals
Red stop
Fire-fighting equipment and its location
harmful
activity Emergency stop devices
Yellow Attention Warning of danger
Danger Caution signs
Inside of machinery guards
Escape routes and refuges
Green Safety
Clear or go signals for persons and vehicles
First
...