Water safety signs and beach safety flags

ISO 20712-2:2007 specifies requirements for the shape and colour of beach safety flags for the management of activities on coastal and inland beaches, to be used for giving information on wind and water conditions and other hazardous conditions, and to indicate the location of swimming and other aquatic activity zones extending from the beach into the water. It also specifies the colorimetric and photometric properties and the physical properties, including strength and colour fastness, of the materials from which beach safety flags are to be made. It is not applicable to flags for use on firing ranges or to flags for use to indicate water quality or to signalling used for maritime traffic.

Signaux de sécurité relatifs à l'eau et drapeaux de sécurité pour les plages

General Information

Status
Published
Publication Date
12-Sep-2007
Current Stage
9093 - International Standard confirmed
Start Date
28-Jun-2021
Ref Project

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INTERNATIONAL ISO
STANDARD 20712-2
First edition
2007-09-15
Water safety signs and beach safety
flags —
Part 2:
Specifications for beach safety flags —
Colour, shape, meaning and performance
Signaux de sécurité relatifs à l'eau et drapeaux de sécurité pour les
plages —
Partie 2: Spécifications des drapeaux de sécurité pour les plages —
Couleur, forme, signification et performance
Reference number
ISO 20712-2:2007(E)
ISO 2007
---------------------- Page: 1 ----------------------
ISO 20712-2:2007(E)
PDF disclaimer

This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but

shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In

downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat

accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.

Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation

parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In

the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

COPYRIGHT PROTECTED DOCUMENT
© ISO 2007

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or

ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2007 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 20712-2:2007(E)
Contents Page

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

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

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

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

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

4 Beach safety flags.................................................................................................................................2

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

4.2 Meaning, function, shape and colour of beach safety flags .............................................................2

4.3 Dimensions of beach safety flags........................................................................................................4

4.3.1 Rectangular flags...................................................................................................................................4

4.3.2 Conical flags..........................................................................................................................................4

5 Beach safety flag material ....................................................................................................................4

5.1 General...................................................................................................................................................4

5.2 Colorimetric and photometric properties of the material..................................................................4

5.3 Physical properties of polyester material ...........................................................................................5

5.3.1 Mass per unit area .................................................................................................................................5

5.3.2 Threads per unit length in woven polyester .......................................................................................5

5.3.3 Numbers of wales and courses in knitted polyester .........................................................................5

5.4 Colour fastness of material ..................................................................................................................5

5.4.1 Colour fastness to light ........................................................................................................................5

5.4.2 Colour fastness to fresh water.............................................................................................................5

5.4.3 Colour fastness to salt water ...............................................................................................................5

5.4.4 Colour fastness to wet and dry rubbing .............................................................................................5

5.4.5 Colour fastness to weathering.............................................................................................................5

5.5 Strength..................................................................................................................................................5

5.5.1 Tensile strength of woven materials ...................................................................................................5

5.5.2 Bursting strength of knitted materials ................................................................................................6

6 Measurement of chromaticity coordinates and luminance factor....................................................6

Annex A (informative) Examples of colours.....................................................................................................7

© ISO 2007 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 20712-2:2007(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 20712-2 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 2007 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 20712-2:2007(E)
Introduction

There is a need to standardize a system of giving safety information 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 beach safety flags 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.

NOTE Some countries’ statutory regulations may differ in some respects from those given in this part of ISO 20712.

© ISO 2007 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 20712-2:2007(E)
Water safety signs and beach safety flags —
Part 2:
Specifications for beach safety flags — Colour, shape, meaning
and performance

IMPORTANT — The colours represented in the electronic file of this document can be neither viewed

on screen nor printed as true representations. Although the copies of this document printed by ISO

have been produced to correspond (with an acceptable tolerance as judged by the naked eye) to the

requirements of this part of ISO 20712, it is not intended that these printed copies be used for colour

matching.
1 Scope

This part of ISO 20712 specifies requirements for the shape and colour of beach safety flags for the

management of activities on coastal and inland beaches, to be used for giving information on wind and water

conditions and other hazardous conditions, and to indicate the location of swimming and other aquatic activity

zones extending from the beach into the water. It also specifies the colorimetric and photometric properties

and the physical properties, including strength and colour fastness, of the materials from which beach safety

flags are to be made.

It is not applicable to flags for use on firing ranges or to flags for use to indicate water quality or to signalling

used for maritime traffic.

NOTE The illustrations in this part of ISO 20712 are as accurate as possible within the limitations of the printing

process.
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 105-A02, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour

ISO 105-A03, Textiles — Tests for colour fastness — Part A03: Grey scale for assessing staining

ISO 105-B02, Textiles — Tests for colour fastness — Part B02: Colour fastness to artificial light: Xenon arc

fading lamp test

ISO 105-B03, Textiles — Tests for colour fastness — Part B03: Colour fastness to weathering: Outd

...

INTERNATIONAL ISO
STANDARD 20712-2
First edition
2007-09-15
Water safety signs and beach safety
flags —
Part 2:
Specifications for beach safety flags —
Colour, shape, meaning and performance
Signaux de sécurité relatifs à l'eau et drapeaux de sécurité pour les
plages —
Partie 2: Spécifications des drapeaux de sécurité pour les plages —
Couleur, forme, signification et performance
Reference number
ISO 20712-2:2007(E)
ISO 2007
---------------------- Page: 1 ----------------------
ISO 20712-2:2007(E)
PDF disclaimer

This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but

shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In

downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat

accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.

Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation

parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In

the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

COPYRIGHT PROTECTED DOCUMENT
© ISO 2007

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or

ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2007 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 20712-2:2007(E)
Contents Page

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

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

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

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

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

4 Beach safety flags................................................................................................................................ 2

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

4.2 Meaning, function, shape and colour of beach safety flags ............................................................ 2

4.3 Dimensions of beach safety flags....................................................................................................... 4

4.3.1 Rectangular flags.................................................................................................................................. 4

4.3.2 Conical flags.......................................................................................................................................... 4

5 Beach safety flag material ................................................................................................................... 4

5.1 General................................................................................................................................................... 4

5.2 Colorimetric and photometric properties of the material................................................................. 4

5.3 Physical properties of polyester material .......................................................................................... 5

5.3.1 Mass per unit area ................................................................................................................................ 5

5.3.2 Threads per unit length in woven polyester ...................................................................................... 5

5.3.3 Numbers of wales and courses in knitted polyester.........................................................................5

5.4 Colour fastness of material ................................................................................................................. 5

5.4.1 Colour fastness to light........................................................................................................................ 5

5.4.2 Colour fastness to fresh water............................................................................................................ 5

5.4.3 Colour fastness to salt water............................................................................................................... 5

5.4.4 Colour fastness to wet and dry rubbing............................................................................................. 5

5.4.5 Colour fastness to weathering ............................................................................................................ 5

5.5 Strength................................................................................................................................................. 5

5.5.1 Tensile strength of woven materials................................................................................................... 5

5.5.2 Bursting strength of knitted materials................................................................................................ 6

6 Measurement of chromaticity coordinates and luminance factor................................................... 6

Annex A (informative) Examples of colours.................................................................................................... 7

© ISO 2007 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 20712-2:2007(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 20712-2 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 2007 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 20712-2:2007(E)
Introduction

There is a need to standardize a system of giving safety information 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 beach safety flags 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.

NOTE Some countries’ statutory regulations may differ in some respects from those given in this part of ISO 20712.

© ISO 2007 – All rights reserved v
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 20712-2:2007(E)
Water safety signs and beach safety flags —
Part 2:
Specifications for beach safety flags — Colour, shape, meaning
and performance

IMPORTANT — The colours represented in the electronic file of this International Standard can be

neither viewed on screen nor printed as true representations. Although the copies of this International

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

by the naked eye) to the requirements of this part of ISO 20712, it is not intended that these printed

copies be used for colour matching.
1 Scope

This part of ISO 20712 specifies requirements for the shape and colour of beach safety flags for the

management of activities on coastal and inland beaches, to be used for giving information on wind and water

conditions and other hazardous conditions, and to indicate the location of swimming and other aquatic activity

zones extending from the beach into the water. It also specifies the colorimetric and photometric properties

and the physical properties, including strength and colour fastness, of the materials from which beach safety

flags are to be made.

It is not applicable to flags for use on firing ranges or to flags for use to indicate water quality or to signalling

used for maritime traffic.

NOTE The illustrations in this part of ISO 20712 are as accurate as possible within the limitations of the printing

process.
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 105-A02, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour

ISO 105-A03, Textiles — Tests for colour fastness — Part A03: Grey scale for assessing staining

ISO 105-B02, Textiles — Tests for colour fastness — Part B02: Colour fastness to artificial light: Xenon arc

fading lamp test

ISO 105-B03, Textiles — Tests for colour fastness — Part B03: Colour fastness to we

...

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