Water safety signs and beach safety flags — Part 1: Specifications for water safety signs used in workplaces and public areas

ISO 20712-1:2008 prescribes water safety signs intended for use in connection with the aquatic environment. It is intended for use by owners and operators of aquatic environments and by manufacturers of signs and equipment. However, it is not applicable to signalling used for maritime traffic. The shape and colour required to be used for safety signs, as prescribed by ISO 3864-1, are given together with the graphical symbols contained within each sign. The water safety sign originals meet the design criteria of ISO 3864-3. ISO 20712-1:2008 specifies the water safety sign originals that may be scaled for reproduction and application purposes. ISO 20712-1:2008 includes water safety signs which require that supplementary text signs be used in conjunction with these water safety signs to improve comprehension.

Signaux de sécurité relatifs à l'eau et drapeaux de sécurité pour les plages — Partie 1: Spécifications des signaux de sécurité relatifs à l'eau utilisés sur les lieux de travail et dans les lieux publics

General Information

Status
Withdrawn
Publication Date
29-Jun-2008
Withdrawal Date
29-Jun-2008
Current Stage
9599 - Withdrawal of International Standard
Start Date
30-Jul-2019
Completion Date
30-Jul-2019
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INTERNATIONAL ISO
STANDARD 20712-1
First edition
2008-07-01
Water safety signs and beach safety
flags —
Part 1:
Specifications for water safety signs
used in workplaces and public areas
Signaux de sécurité relatifs à l'eau et drapeaux de sécurité pour les
plages —
Partie 1: Spécifications des signaux de sécurité relatifs à l'eau utilisés
sur les lieux de travail et dans les lieux publics
Reference number
ISO 20712-1:2008(E)
ISO 2008
---------------------- Page: 1 ----------------------
ISO 20712-1:2008(E)
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© ISO 2008

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ii © ISO 2008 – All rights reserved
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ISO 20712-1:2008(E)
Contents Page

Foreword............................................................................................................................................................ iv

Introduction ........................................................................................................................................................ v

1 Scope..................................................................................................................................................... 1

2 Normative references........................................................................................................................... 1

3 Terms and definitions........................................................................................................................... 2

4 Referents and categorization of water safety signs.......................................................................... 2

4.1 General................................................................................................................................................... 2

4.2 Referent (safety meaning).................................................................................................................... 2

4.3 Categorization of water safety signs .................................................................................................. 4

5 Standardized water safety signs ......................................................................................................... 5

© ISO 2008 – All rights reserved iii
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ISO 20712-1:2008(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies

(ISO member bodies). The work of preparing International Standards is normally carried out through ISO

technical committees. Each member body interested in a subject for which a technical committee has been

established has the right to be represented on that committee. International organizations, governmental and

non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the

International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 20712-1 was prepared by Technical Committee ISO/TC 145, Graphical symbols, Subcommittee SC 2,

Safety identification, signs, shapes, symbols and colours.

ISO 20712 consists of the following parts, under the general title Water safety signs and beach safety flags:

⎯ Part 1: Specifications for water safety signs used in workplaces and public areas

⎯ Part 2: Specifications for beach safety flags — Colour, shape, meaning and performance

⎯ Part 3: Guidance for use
iv © ISO 2008 – All rights reserved
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ISO 20712-1:2008(E)
Introduction

There is a need to standardize a system giving safety information related to aquatic activity that relies as little

as possible on the use of words to achieve understanding.

Continued growth in international trade, travel and mobility of labour requires a common method of

communicating safety information.
Lack of standardization may lead to confusion and perhaps accidents.

The use of standardized safety signs does not replace proper work methods, instructions and accident

prevention training and/or measures. Education is an essential part of any system that provides safety

information.

This part of ISO 20712 is intended to be used by all Technical Committees within ISO charged with

developing specific safety signing in places of aquatic activity to ensure that there is only one safety sign for

each safety meaning. It is also intended that this part of ISO 20712 be revised regularly to include safety signs

as they are standardized by ISO, and which conform to the principles given in ISO 3864-1 and the design

criteria given in ISO 3864-3.

NOTE 1 Some countries' statutory regulations may differ in some respect from those given in this part of ISO 20712.

NOTE 2 Some countries may differ in some respect from the requirements given in this part of ISO 20712 in that they

use the diamond geometric shape for warning signs.
© ISO 2008 – All rights reserved v
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INTERNATIONAL STANDARD ISO 20712-1:2008(E)
Water safety signs and beach safety flags —
Part 1:
Specifications for water safety signs used in workplaces
and public areas

IMPORTANT — The colours represented in the electronic file of this part of ISO 20712 can be neither

viewed on screen nor printed as true representations. Although the copies of this part of ISO 20712

printed by ISO have been produced to correspond (with an acceptable tolerance as judged by the

naked eye) to the requirements of ISO 3864-1, it is not intended that these printed copies be used for

colour matching. Instead, consult ISO 3864-1, which provides colorimetric and photometric properties,

together with, as a guideline, references from colour order systems.
1 Scope

This part of ISO 20712 prescribes water safety signs intended for use in connection with the aquatic

environment. It is intended for use by owners and operators of aquatic environments and by manufacturers of

signs and equipment. However, it is not applicable to signalling used for maritime traffic.

The shape and colour required to be used for safety signs, as prescribed by ISO 3864-1, are given together

with the graphical symbols contained within each sign. The water safety sign originals meet the design criteria

of ISO 3864-3.

This part of ISO 20712 specifies the water safety sign originals that may be scaled for reproduction and

application purposes.

This part of ISO 20712 includes water safety signs which require that supplementary text signs be used in

conjunction with these water safety signs to improve comprehension.

NOTE The criteria of acceptability adopted by ISO/TC 145/SC 2 are given on website www.iso.org/tc145/sc2.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.

ISO 3864-1, Graphical symbols — Safety colours and safety signs — Part 1: Design principles for safety signs

in workplaces and public areas

ISO 3864-3, Graphical symbols — Safety colours and safety signs — Part 3: Design principles for graphical

symbols for use in safety signs

ISO 9186-1, Graphical symbols — Test methods — Part 1: Methods for testing comprehensibility

ISO 17724, Graphical symbols — Vocabulary
© ISO 2008 – All rights reserved 1
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ISO 20712-1:2008(E)
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 17724 and the following apply.

3.1
aquatic environment

areas such as coastal and inland beaches and waterways, swimming pools and their facilities, and other

bodies of water, slurry and other agricultural and industrial liquids storage
3.2
format of application
type of object on which the symbol or sign is intended to be used
3.3
referent
idea or object that a safety sign is intended to represent
3.4
safety sign original

safety sign with which a referent, a graphical representation and a description of the application are

associated
4 Referents and categorization of water safety signs
4.1 General

The summaries in 4.2 and 4.3 are provided to facilitate the search for standardized water safety signs.

4.2 Referent (safety meaning)

Table 1 gives the list of referents in alphabetical order and provides the water safety sign functional reference

number.
2 © ISO 2008 – All rights reserved
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ISO 20712-1:2008(E)
Table 1 — Summary of referents by alphabetical order
Referent
Functional reference number
(safety meaning)
Boating area, warning WSW016
Crocodiles, alligators or caymans, warning WSW025
Deep shelving beach, warning WSW024
Deep water, warning WSW005
High surf or large breaking waves, warning WSW023
Incoming tides, warning WSW018
Keep children under supervision in the aquatic environment WSM002
Kite surfing, warning WSW020
No body boarding WSP016
No diving WSP005
No jumping into water WSP014
No kite surfing WSP018
No manually powered craft WSP008
No mechanically powered craft WSP009
No outdoor footwear WSP013
No parasailing WSP019
No personal water craft WSP010
No pushing into water WSP015
No running WSP001
No sailing WSP006
No sand yachting WSP020
No snorkelling WSP003
No sub-aqua diving WSP004
No surf craft WSP012
No surfing between the red-and-yellow flags WSP017
No swimming WSP002
No towed water activity WSP011
No windsurfing WSP007
Parasailing, warning WSW021
Public rescue equipment WSE001
Quicksand or mud/deep mud or silt, warning WSW019
Sand yachting, warning WSW017
Sewage effluent outfall, warning WSW013
Shallow water (diving), warning WSW006
Sharks, warning WSW012
© ISO 2008 – All rights reserved 3
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ISO 20712-1:2008(E)
Table 1 (continued)
Referent
Functional reference number
(safety meaning)
Slipway, warning WSW002
Strong currents, warning WSW015
Strong winds, warning WSW022
Submerged objects, warning WSW007
Sudden drop in swimming or leisure pools, warning WSW008
Surf craft area, warning WSW004
Thin ice, warning WSW001
Towed water activity area, warning WSW003
Tsunami evacuation area WSE002
Tsunami evacuation building WSE003
Tsunami hazard zone, warning WSW014
Unprotected edges, warning WSW009
Unstable cliff, warning WSW011
Unstable cliff edge, warning WSW010
Wear personal flotation devices WSM001
4.3 Categorization of water safety signs
Water safety signs are categorized according to their function as follows:

⎯ E is the category for means of escape and emergency equipment signs (safe condition signs);

⎯ M is the category for mandatory action signs;
⎯ P is the category for prohibition signs;
⎯ W is the category for warning signs.

Table 2 summarizes the standardized safety signs used in workplaces and public areas in terms of function

category, graphical symbol and geometric shape and colour as specified in ISO 3864-1.

4 © ISO 2008 – All rights reserved
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ISO 20712-1:2008(E)
5 Standardized water safety signs

Tables 3 to 6 give safety sign originals in a uniform 70 mm size with corner marks to enable accurate

enlargement and reduction scaling. The sign illustrations are shown without borders in order to allow for

consistent reproduction scaling, though the use of borders is encouraged as defined by ISO 3864-1. The

safety signs should be reproduced exactly as shown in Tables 3 to 6. However some degree of graphical

modification is permitted when cultural differences or special application formats need to be considered,

provided the original meaning is retained and comprehension of the sign is maintained. Consistent

reproduction and use of these safety signs will lead to a progressively improved degree of comprehension at

the international level.

In cases where the orientation of the symbol is not essential to its meaning, the orientation may be changed.

A graphical symbol may be depicted in outline or filled-in form.

Tables 3 to 6 present the safety sign originals according to their category as follows:

⎯ E Means of escape and emergency equipment signs (safe condition signs) see Table 3

⎯ M Mandatory action signs see Table 4
⎯ P Prohibition signs see Table 5
⎯ W Warning signs see Table 6

Tables 3 to 6 also give a description of the application used for each safety sign.

© ISO 2008 – All rights reserved 5
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ISO 20712-1:2008(E)
Table 2 — Summary of all safety signs
Category
Safety sign, E M P W
reference number
Means of escape
and referent
Mandatory action
and emergency Prohibition signs Warning signs
signs
equipment signs
Safety sign
Reference number WSE001 WSM001 WSP001 WSW001
No running Warning; Thin ice
Referent
Public rescue Wear personal
equipment flotation devices
Safety sign
WSM002
Reference number WSE002 WSP002 WSW002
Keep children under
Referent Tsunami No swimming Warning; Slipway
supervision in the
evacuation area
aquatic environment
Safety sign —
Reference number WSP003
WSE003 WSW003
Referent — No snorkelling
Tsunami Warning; Towed water
evacuation building activity area
Safety sign — —
Reference number
— WSP004 WSW004
— No sub-aqua diving Warning;
Referent
Surf craft area
Safety sign — —
Reference number — — WSP005 WSW005
— — No diving Warning; Deep water
Referent
6 © ISO 2008 – All rights reserved
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ISO 20712-1:2008(E)
Table 2 (continued)
Category
Safety sign,
E M P W
reference number
Means of escape
and referent
Mandatory action
and emergency Prohibition signs Warning signs
signs
equipment signs
Safety sign — —
Reference number
— — WSP006 WSW006
— — No sailing Warning;
Referent
Shallow water (diving)
Safety sign — —
Reference number WSP007 WSW007
— —
Referent — — No windsurfing Warning;
Submerged objects
Safety sign — —
Reference number
WSP008 WSW008
— —
No manually Warning; Sudden drop
Referent
— —
powered craft in swimming or leisure
pools
Safety sign — —
Reference number
— — WSP009 WSW009
Referent — — No mechanically Warning;
powered craft Unprotected edges
Safety sign — —
Reference number
— — WSP010 WSW010
— — No personal Warning;
Referent
water craft Unstable cliff edge
© ISO 2008 – All rights reserved 7
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ISO 20712-1:2008(E)
Table 2 (continued)
Category
E M P W
Safety sign,
reference number
Means of escape
and referent Mandatory action
and emergency Prohibition signs Warning signs
signs
equipment signs
Safety sign — —
Reference number
— WSP011
WSW011
— No towed water
Referent
Warning; Unstable cliff
activity
Safety sign —
— WSP012 WSW012
Reference number
No surf craft Warning; Sharks
Referent
Safety sign — —
Reference number WSP013 WSW013
— —
Referent — — No outdoor footwear Warning; Sewage
effluent outfall
Safety sign — —
Reference number — —
WSP014
WSW014
— —
Referent No jumping into water
Warning; Tsunami
hazard zone
Safety sign — —
Reference number — — WSW015
WSP015
Referent — — Warning;
No pushing into water
Strong currents
8 © ISO 2008 – All rights reserved
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ISO 20712-1:2008(E)
Table 2 (continued)
Category
Safety sign,
E M P W
reference number
Means of escape
and referent
Mandatory action
and emergency Prohibition signs Warning signs
signs
equipment signs
Safety sign — —
Reference number — —
WSP016 WSW016
Referent — —
No body boarding Warning; Boating area
Safety sign
— —
WSP017
Reference number
— WSW017
No surfing between
— Warning;
Referent
the red-and-yellow
Sand yachting
flags
Safety sign — —
Reference number
— — WSP018 WSW018
— — No kite surfing Warning;
Referent
Incoming tides
Safety sign — —
Reference number
— —
WSW019
WSP019
Referent
— —
Warning; Quicksand or
No parasailing
mud/deep mud or silt
Safety sign — —
Reference number
— —
WSP020
WSW020
— —
Referent No sand yachting
Warning; Kite surfing
© ISO 2008 – All rights reserved 9
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ISO 20712-1:2008(E)
Table 2 (continued)
Category
Safety sign,
E M P W
reference number
Means of escape
and referent
Mandatory action
and emergency Prohibition signs Warning signs
signs
equipment signs
Safety sign — — —
Reference number
— — —
WSW021
— —
Referent
Warning; Parasailing
Safety sign — — —
Reference number
— — —
WSW022
Referent —
Warning; Strong winds
Safety sign — — —
Reference number
— — WSW023
Referent — — Warning; High surf or
large breaking waves
Safety sign — — —
Reference number
— —
WSW024
Referent
— —
Warning;
Deep shelving beach
Safety sign — — —
Reference number
— — — WSW025
— — Warning; Crocodiles,
Referent
alligators or caymans
10 © ISO 2008 – All rights reserved
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ISO 20712-1:2008(E)
Table 3 — Description and application of referent for means of escape
and emergency equipment signs (safe condition signs) (category E)
Reference No.
WSE001
Referent
Public rescue equipment
Function
To indicate the location of water life-saving equipment
(public rescue equipment)
Image content
Lifebelt ring with rope
Hazard

Not being able to locate the public rescue equipment which is provided to assist in the avoidance of drowning

Human behaviour that is intended to be caused after understanding the safety sign's meaning

People being aware of location of public rescue equipment at the time of need
Human behaviour that is intended to be prevented

People not being aware of location of public rescue equipment at the time of need

Need
The use of public rescue equipment can reduce the risk of injury or drowning.
Related referents
Field of application
Workplaces, public areas
Format of application
Safety signing, notices and safety manuals
Context of use
In aquatic environments; water safety, aquatic safety
Additional information

Test data obtained according to ISO 9186-1 are available from more than one country. Findings from testing showed

that the graphical symbol exceeded the criteria of acceptability. A supplementary text sign may be used to increase

comprehension. If the safety sign is supplemented by manuals, instructions or training, a supplementary text sign may

not be required.
© ISO 2008 – All rights reserved 11
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ISO 20712-1:2008(E)
Table 3 (continued)
Reference No.
WSE002
Referent
Tsunami evacuation area
Function
To indicate the location of a safe place/uphill area for
evacuation to in the event of a tsunami
Image content
Human figure between a slope of land mass and a
tsunami wave
Hazard

Tsunami wave originating from an ocean-floor seismic event in which people could be caught if they have not reached

the tsunami evacuation area

Human behaviour that is intended to be caused after understanding the safety sign's meaning

Evacuation from coastal/beach zone towards higher place/hill in the event of an earthquake or when a tsunami warning

has been issued
Human behaviour that is intended to be prevented

Remaining in the costal/beach zone or running in the sea or wrong direction when a tsunami warning has been issued

Need

Although tsunami mitigation plans have been prepared and are available to civil protection agencies, they shall be

complemented by signs that advise the population on directions to take to tsunami evacuation areas. People can be

injured or drowned if they are not given indication of location of tsunami evacuation areas and directions to them.

Related referents
WSE003, WSW014
Field of application
Workplaces, public areas
Format of application

Multiple signs in relevant coastal/beach zones and evacuation routes, notices, safety manuals

Context of use

In tsunami hazard zones, signing of evacuation routes to tsunami evacuation areas should consist of WSE002

supplemented by the appropriate direction arrow ISO 7010-E005 or ISO 7010-E006. WSE002 shall be used to indicate

the location of a tsunami evacuation area.
Additional information

This water safety sign has been the subject of extensive research by the Japanese government and has also been

requested by UNESCO as part of an overall approach to a management strategy designed to mitigate the disastrous

effects of a tsunami wave. The design selected has received the best comprehension results and is specific to the

special circumstances of the tsunami hazard. Supplementary text shall be used to increase comprehension except

when the safety sign is supplemented by manuals, instructions or training.
12 © ISO 2008 – All rights reserved
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ISO 20712-1:2008(E)
Table 3 (continued)
Reference No.
WSE003
Referent
Tsunami evacuation building
Function
To indicate the location of a safe building for evacuation in
the event of a tsunami
Image content
Human figure between a building and a tsunami wave
Hazard

Tsunami wave originating from an ocean-floor seismic event in which people could be caught if they have not reached

the tsunami evacuation building

Human behaviour that is intended to be caused after understanding the safety sign's meaning

Evacuation from coastal/beach zone towards a tsunami evacuation building in the event of an earthquake or when a

tsunami warning has been issued
Human behaviour that is intended to be prevented

Remaining in the coastal/beach zone or running in the sea or wrong direction when a tsunami warning has been issued

Need

Although tsunami mitigation plans have been prepared and are available to civil protection agencies, they shall be

complemented by signs that advise the population on directions to take to tsunami evacuation buildings. People can be

injured or drowned if they are not given indication of location of tsunami evacuation buildings and directions to them.

Related referents
WSE002, WSW014
Field of application
Workplaces, public areas
Format of application

Multiple signs in relevant coastal/beach zones and evacuation routes, notices, safety manuals

Context of use

In tsunami hazard zones, signing of evacuation routes to tsunami evacuation buildings should consist of WSE003

supplemented by the appropriate direction arrow ISO 7010-E005 or ISO 7010-E006. WSE003 shall be used to indicate

the location of a tsunami evacuation building.
Additional information

This water safety sign has been the subject of extensive research by the Japanese government and has also been

requested by UNESCO as part of an overall approach to a management strategy designed to mitigate the disastrous

effects of a tsunami wave. The design selected has received the best comprehension results and is specific to the

special circumstances of the tsunami hazard. Supplementary text shall be used to increase comprehension except

when the safety sign is supplemented by manuals, instructions or training.
© ISO 2008 – All rights reserved 13
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ISO 20712-1:2008(E)

Table 4 — Description and application of referent for mandatory action signs (category M)

Reference No.
WSM001
Referent
Wear personal flotation devices
Function
To signify that personal flotation devices (lifejackets) must
be worn
Image content
Human figure wearing personal flotation device (lifejacket)
Hazard
Not using a personal flotation device can result in a person drowning

Human behaviour that is intended to be caused after understanding the safety sign's meaning

Wearing personal flotation device (lifejacket)
Human behaviour that is intended to be prevented

Neglecting the dangers of drowning and not wearing personal flotation device (lifejacket)

Need
Personal flotation devices are needed in an emergency to help avoid drowning.
Related referents
Field of application
Workplaces, public areas
Format of application
Safety signing, notices and safety manuals
Context of use
In aquatic environments; water safety, aquatic safety
Additional information

Test data obtained according to ISO 9186-1 are available from more than one country. Findings from testing showed

that the graphical symbol exceeded the criteria of acceptability. A supplementary text sign may be used to increase

comprehension. If the safety sign is supplemented by manuals, instructions or training, a supplementary text sign may

not be required.
14 © ISO 2008 – All rights reserved
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ISO 20712-1:2008(E)
Table 4 (continued)
Reference No.
WSM002
Referent
Keep children under supervision in the
aquatic environment
Function
To signify that children must be kept under supervision in
the aquatic environment
Image content
Top part of large human figure, top part of small human
figure with raised arm, arrow, two wavy lines
Hazard
Children being in water where they could get into difficulties

Human behaviour that is intended to be caused after understanding the safety sign's meaning

Adults supervising children playing in water or swimming
Human behaviour that is intended to be prevented
Children playing in water or swimming without the supervision of adults
Need
Many young children drown in pools whilst unsupervised.
Related referents
Field of application
Workplaces, public areas, products
Format of application
Safety signing, notices, safety manuals, product safety labels
Context of use

In areas of aquatic activity, water safety, aquatic safety, swimming pools. Each place and time where children could be

unsupervised
Additional information

Test data obtained according to ISO 9186-1 are available from more than one country. Findings from testing showed

that the graphical symbol did not reach the criteria of acceptability. Consequently, a supplementary text sign shall be

used to increase comprehension except when the safety sign is supplemented by manuals, instructions or training.

© ISO 2008 – All rights reserved 15
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ISO 20712-1:2008(E)

Table 5 — Description and application of referent for prohibition signs (category P)

Reference No.
WSP001
Referent
No running
Function
To prohibit running
Image content
Human figure shown in profile running
Hazard
Falling or colliding caused by running

Human behaviour that is intended to be caused after understanding the safety sign's meaning

No running
Human behaviour that is intended to be prevented
Running
Need

People can injure themselves or others when running in areas beside swimming pools and in other areas.

Related referents
Field of application
Workplaces, public areas
Format of application
Safety signing, notices and safety manuals
Context of use

In areas of aquatic activity, water safety, aquatic safety, swimming pools and other areas

Additional information

Test data obtained according to ISO 9186-1 are available from more than one country. Findings from testing showed

that the graphical symbol exceeded the criteria of acceptability. A supplementary text sign may be used to increase

comprehension. If the safety sign is supplemented by manuals, instructions or training, a supplementary text sign may

not be required.
...

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