Ships and marine technology -- Identification colours for the content of piping systems

ISO 14726:2008 specifies main colours and additional colours for identifying piping systems in accordance with the content or function on board ships and marine structures. These colours can also be used for piping systems on drawings and diagrams. ISO 14726:2008 does not apply to piping systems for medical gases, industrial gases and cargo. ISO 14726:2008 can also be used for land installations.

Navires et technologie maritime -- Couleurs pour l'identification du contenu des systèmes de tuyauterie

General Information

Status
Published
Publication Date
15-Apr-2008
Current Stage
6060 - International Standard published
Start Date
18-Feb-2008
Completion Date
16-Apr-2008
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INTERNATIONAL ISO
STANDARD 14726
First edition
2008-05-01
Ships and marine technology —
Identification colours for the content of
piping systems
Navires et technologie maritime — Couleurs pour l'identification du
contenu des sytèmes de tuyauterie
Reference number
ISO 14726:2008(E)
ISO 2008
---------------------- Page: 1 ----------------------
ISO 14726:2008(E)
PDF disclaimer

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accepts no liability in this area.
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use by ISO member bodies. In the unlikely event that a problem relating to them is found, please inform the Central Secretariat at the

address given below.

This CD-ROM contains the publication ISO 14726:2008 in portable document format (PDF), which can be

viewed using Adobe® Acrobat® Reader.
Adobe and Acrobat are trademarks of Adobe Systems Incorporated.

This first edition cancels and replaces ISO 14726-1:1999 and ISO 14726-2:2002, which have been technically

revised.
COPYRIGHT PROTECTED DOCUMENT
© ISO 2008

All rights reserved. Unless required for installation or otherwise specified, no part of this CD-ROM may be reproduced, stored in a retrieval

system or transmitted in any form or by any means without prior permission from ISO. Requests for permission to reproduce this product

should be addressed to
ISO copyright office • Case postale 56
...

INTERNATIONAL ISO
STANDARD 14726
First edition
2008-05-01
Ships and marine technology —
Identification colours for the content of
piping systems
Navires et technologie maritime — Couleurs pour l'identification du
contenu des systèmes de tuyauterie
Reference number
ISO 14726:2008(E)
ISO 2008
---------------------- Page: 1 ----------------------
ISO 14726:2008(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 2008

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 2008 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 14726:2008(E)
Contents Page

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

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

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

3 Terms and definitions........................................................................................................................... 1

4 Colours .................................................................................................................................................. 2

5 Design .................................................................................................................................................... 6

Annex A (informative) Explanations for some media/functions.................................................................... 8

Annex B (informative) Standard colours and equivalent colour codes...................................................... 12

Bibliography ..................................................................................................................................................... 13

© ISO 2008 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 14726:2008(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 14726 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee

SC 3, Piping and machinery.

This first edition cancels and replaces ISO 14726-1:1999 and ISO 14726-2:2002, which have been technically

revised.
iv © ISO 2008 – All rights reserved
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 14726:2008(E)
Ships and marine technology — Identification colours for the
content of piping systems
1 Scope

This International Standard specifies main colours and additional colours for identifying piping systems in

accordance with the content or function on board ships and marine structures.
These colours can also be used for piping systems on drawings and diagrams.

This International Standard does not apply to piping systems for medical gases, industrial gases and cargo.

This International Standard can also be used for land installations.
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.
IEC 60757, Code for designation of colours
CIE 015, Colorimetry
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
main colour
colour used to indicate a group of similar media
3.2
additional colour
colour used in combination with the main colour to indicate a specific medium
© ISO 2008 – All rights reserved 1
---------------------- Page: 5 ----------------------
ISO 14726:2008(E)
4 Colours

The main colours represented in the electronic file of this International Standard are reference colours; colours

of a similar shade and tone may also be used for marking pipes (see Table 1).
Table 1 — Chromaticity
Co-ordinate points of chromaticity areas
Luminance
Letter
Main
factor
Example
1 2 3 4
colour
code
x y x y x y x y
u 0,03
Black BK 0,385 0,355 0,300 0,270 0,260 0,310 0,345 0,395
W 0,05
Blue BU 0,078 0,171 0,196 0,250 0,225 0,184 0,137 0,038
W 0,04
Brown BN 0,510 0,370 0,427 0,353 0,407 0,373 0,475 0,405
W 0,10
Green GN 0,313 0,682 0,313 0,453 0,209 0,383 0,013 0,486
Grey GY 0,350 0,360 0,300 0,310 0,290 0,320 0,340 0,370 0,15 u β u 0,50
W 0,10
Maroon MN 0,302 0,064 0,307 0,203 0,374 0,247 0,457 0,136
W 0,25
Orange OG 0,610 0,390 0,535 0,375 0,506 0,404 0,570 0,429
Silver SR Luminance factor β > 0,50
W 0,07
Red RD 0,690 0,310 0,595 0,315 0,569 0,341 0,655 0,345
0,10 u β u 0,36
Violet VT 0,250 0,160 0,286 0,146 0,293 0,273 0,304 0,275
W 0,75
White WH 0,350 0,360 0,300 0,310 0,290 0,320 0,340 0,370
W 0,45
Yellow YE 0,522 0,477 0,470 0,440 0,427 0,483 0,465 0,534
As given in IEC 60757.

CIE 1931 chromaticity co-ordinates for standard illuminant D65 and 45/0 or d/8 measurement geometry in accordance with

CIE 015.
2 © ISO 2008 – All rights reserved
---------------------- Page: 6 ----------------------
ISO 14726:2008(E)
Table 2 — Main colours and media
Main colour Medium
Black Waste media
Blue Fresh water
Brown Fuel
Green Sea water
Grey Non-flammable gases
Maroon Air and sounding pipes
Orange Oils other than fuels
Silver Steam
Red Fire fighting
Violet Acids, alkalis
White Air in ventilation systems
Yellow Flammable gases
Examples: black water, grey water, waste oil, exhaust gas.
For ships with mixed navigation (sea-river ships): all outside waters.
© ISO 2008 – All rights reserved 3
---------------------- Page: 7 ----------------------
ISO 14726:2008(E)
Table 3 — Additional colours for different media or functions
BK BU
Waste media Fresh water
(main colour) (main colour)
Black water BK – BU – BK BU – BK – BU
Waste oil/used oil BK – BN – BK Fresh water, sanitary BU – BN – BU
Bilge water BK – GN – BK Potable water BU – GN – BU
Exhaust gas BK – GY – BK Distillate BU – GY – BU
BK – MN – BK BU – MN – BU
BK – OG – BK Gas-turbine wash water BU – OG – BU
BK – SR – BK Feed water BU – SR – BU
BK – RD – BK BU – RD – BU
BK – VT – BK Cooling fresh water BU – VT – BU
Grey water BK – WH – BK Chilled water BU – WH – BU
Sewage, contaminated BK – YE – BK Condensate BU – YE – BU
BN GN
Fuel Sea water
(main colour) (main colour)
Heavy fuel oil (HFO) BN – BK – BN GN – BK – GN
Aviation fuel BN – BU – BN Decontamination water GN – BU – GN
BN – GN – BN Sea water, sanitary GN – BN – GN
BN – GY – BN GN – GY – GN
BN – MN – BN GN – MN – GN
BN – OG – BN GN – OG – GN
BN – SR – BN GN – SR – GN
BN – RD – BN GN – RD – GN
Biological fuel BN – VT – BN Ballast water GN – VT – GN
Gas-turbine fuel BN – WH – BN GN – WH – GN
Marine diesel oil (MDO) BN – YE – BN Cooling sea water GN – YE – GN
GY MN
Non-flammable gases Air and sounding pipes
(main colour) (main colour)
GY – BK – GY Waste media MN – BK – MN
Oxygen GY – BU – GY Fresh water MN – BU – MN
Inert gas GY – BN – GY Fuel MN – BN – MN
Nitrogen GY – GN – GY Sea water MN – GN – MN
Refrigerant GY – MN – GY Non-flammable gases MN – GY – MN
Compressed air LP
GY – OG – GY Oil other than fuels MN – OG – MN
(Low pressure)
GY – SR – GY Steam MN – SR – MN
Compressed air HP
GY – RD – GY Fire fighting MN – RD – MN
(High pressure)
Control air/regulating air GY – VT – GY Acids, alkalis MN – VT – MN
Breathing air GY – WH – GY Ventilation system MN – WH – MN
Breathing gas GY – YE – GY Flammable gases MN – YE – MN
This marking is used in submarines for distribution
systems of breathing air from cylinders.
4 © ISO 2008 – All rights reserved
---------------------- Page: 8 ----------------------
ISO 14726:2008(E)
Table 3 (continued)
OG SR
Oils other than fuels Steam
(main colour) (main colour)
OG – BK – OG Steam for heating purposes SR – BK – SR
Thermal fluid OG – BU – OG SR – BU – SR
OG – BN – OG SR – BN – SR
Lubrication oil for gas turbines OG – GN – OG Driving steam SR – GN – SR
Hydraulic fluid OG – GY – OG SR – GY – SR
OG – MN – OG SR – MN – SR
Lubrication oil for steam turbines OG – SR – OG SR – OG – SR
OG – RD – OG SR – RD – SR
Lubrication oil for gears OG – VT – OG SR – VT – SR
OG – WH – OG Exhaust steam SR – WH – SR
Lubrication oil for internal OG – YE – OG Supply steam SR – YE – SR
combustion engines
Fire fighting/ RD VT
Acids, alkalis
fire protection (main colour) (main colour)
RD – BK – RD VT – BK – VT
RD – BU – RD VT – BU – VT
RD – BN – RD VT – BN – VT
Fire-fighting water RD – GN – RD VT – GN – VT
Fire-fighting gas RD – GY – RD VT – GY – VT
RD – MN – RD VT – MN – VT
Sprinkler water RD – OG –
...

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