ISO 20712-3:2024

International
Standard
ISO 20712-3
Fourth edition
Water safety signs and beach
safety flags —
Part 3:
Guidance for use
Signaux de sécurité relatifs à l'eau et drapeaux de sécurité pour
les plages —
Partie 3: Lignes directrices pour l'utilisation
PROOF/ÉPREUVE
Reference number
ISO 20712-3:2024(en) © ISO 2024

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ISO 20712-3:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
PROOF/ÉPREUVE
© ISO 2024 – All rights reserved
ii

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ISO 20712-3:2024(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Guidance for selection and siting of signs and flags . 2
4.1 Guidance for risk assessment .2
4.2 Siting .3
4.2.1 Water safety signs and multiple signs .3
4.2.2 Beach safety flags .3
5 Water safety signs . 3
5.1 General recommendations for aquatic environments .3
5.1.1 General .3
5.1.2 Mounting height .4
5.1.3 Lighting .4
5.1.4 Sign height and maximum viewing distance .4
5.1.5 Use of supplementary text .5
5.1.6 Construction: durability and suitability .6
5.1.7 Servicing and maintenance.
...

ISO/PRF 20712-3
ISO/TC 145/SC 2
Date: 2023-08-10
ISO/DIS 20712-3:2023(E)
Secretariat: DIN
Date: 2024-03-22
Water safety signs and beach safety flags —
Part 3:
Guidance for use
Signaux de sécurité relatifs à l'eau et drapeaux de sécurité pour les plages —
Partie 3: Lignes directrices pour l'utilisation
PROOF

---------------------- Page: 1 ----------------------
ISO/DISPRF 20712-3:2023(E2024(en)
© ISO 2023 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying
and microfilm, or posting on the internet or an intranet, without prior written permission in writing. Permission can be
requested from either ISO at the address below or ISO'sISO’s member body in the country of the requester.
ISO copyright office
Case postale 56 • CP 401 • Ch. de Blandonnet 8
CH-12111214 Vernier, Geneva 20
Tel.Phone: + 41 22 749 01 11
Fax + 41 22 734 10 79
E-mail copyright@iso.ch
Web www.iso.ch
PrintedE-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2023 – All rights reserved
© ISO 2024 – All rights reserved
ii

---------------------- Page: 2 ----------------------
ISO/DISPRF 20712-3:2023(E2024(en)
Contents Page
Foreword . vi
Introduction . vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Guidance for selection and siting of signs and flags . 2
4.1 Guidance for risk assessment . 2
4.2 Siting . 3
4.2.1 Water safety signs and multiple signs . 3
4.2.2 Beach safety flags . 3
5 Water safety signs . 4
5.1 General recommendations for aquatic environments . 4
5.1.1 General. 4
5.1.2 Mounting height. 4
5.1.3 Lighting. 5
5.1.4 Sign height and maximum viewing distance . 5
5.1.5 Use of supplementary text . 6
5.1.6 Construction: durability and suitability . 6
5.1.7 Servicing and maintenance . 7
5.2 Specific recommendations for the swimming pool environment .
...