BS 1710 - The British Way of Marking Pipes
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BS 1710 stands for British Standard 1710. This is a framework legislated in 1984 that specifies how pipelines, ducting and electrical conduits should be labelled. The labels and tapes provide a visual identifier to warn of the risks and dangers of the release of pipeline contents and to prevent accidents and injuries from any such release.
Content Information Code Indicators
Pipe contents must be easily identifiable and labelled with at least one of the following methods, in line with the British Standard 1710 pipe marking code:
• The full name of the content
• Its common abbreviated name
• The chemical symbol
• The appropriate designated colour bands
• Its British Standard 4580 number
Any text or symbols (code indicators) must be printed either in black or white, depending on which shows up more clearly on the assigned label colour for the pipe content.
Direction of Flow
As well as having a content label, each pipe should be labelled with the direction of the content’s flow. This should be on or near the identification colour label.
As with the text, this arrow should be black or white depending on which provides the better contrast against the liquid or gas pipe colour identification.
BASIC IDENTIFICATION COLOURS
BS 1710 gives specific guidelines on the colours of pipeline labelling. Pipelines may be labelled with multiple colours in specific patterns, or they may be labelled with a single colour known as the 'basic identification colour'.
Although there are dozens of different categories of pipeline contents, there are distinct categories of conduits that share the same basic identification colour. The main typical categories for these, and their assigned identification colours, are as follows in the pipe colour coding chart (UK) below.
BS 1710 Colour Chart
Pipe Contents Name Reference |
Colour |
BS 4800 Colour |
Water
|
Green |
12 D 45 |
Steam |
Silver-Grey |
10 A 03 |
Oils (mineral,vegetable or animal) |
Brown |
06 C 39 |
Gases (in either gas or liquid phase - except air) |
Yellow Ochre |
08 C 35 |
Acids / Alkalis |
Violet |
22 C 37 |
Air |
Light Blue |
20 E 51 |
Other Liquids |
Black |
00 E 53 |
You can see what each one looks like in practice, below.
WATER MARKING
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WATER PIPELINE TAPE
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DRINKING WATER FLOW LABEL
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WATER FLOW TAPE
The dark laurel identification colour is used for pipes that contain water of any use. This includes, amongst others, drink water, boiler water, central heating water and fire extinguishing water.
BS Colour: 12 D 45
HEX Colour: #6A6C3C
RGB Colour: 106; 108; 60
OIL & FUEL MARKING
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OIL PIPELINE TAPE
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OIL FLOW LABEL
The saddle brown brown colour is used to indicate the presence of oils or fuel, such as diesel, lubricating oil, and hydraulic power oil.
BS Colour: 06 C 39
HEX Colour: #72503B
RGB Colour: 114; 80; 59
GAS & REFRIGERANTS
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GAS PIPELINE TAPE
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GAS FLOW LABEL
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GAS FLOW TAPE
The 'fudge' colour indicates the presence of refrigerants and natural gas.
BS Colour: 08 C 35
HEX Colour: #CFA671
RGB Colour: 207; 166; 113
AIR SERVICES & VACUUMS
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AIR PIPELINE TAPE
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AIR FLOW LABEL
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AIR & VACUUM FLOW TAPE
'Cornflower blue' indicates the presence of compressed air or a vacuum.
BS Colour: 20 E 51
HEX Colour: #6CA4D3
RGB Colour: 108; 164; 21
STEAM
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STEAM PIPELINE TAPE
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STEAM FLOW LABEL
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STEAM FLOW TAPE
The 'dawn grey' label colour is only used for steam pipes.
BS Colour: 10 A 03
HEX Colour: #C9C7BF
RGB Colour: 201; 199; 191
DRAINAGE & EFFLUENT
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DRAIN PIPELINE TAPE
Black coloured labels indicated that the pipe contains treated or untreated wastewater.
BS Colour: 00 E 53
HEX Colour: #2F2F30
RGB Colour: 47; 47; 48
ELECTRICAL CONDUITS & DUCTS
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ELECTRICITY PIPELINE TAPE
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ELECTRICITY FLOW LABEL
The 'apricot' colour indicates the presence of electrical cabling within a duct or conduit.
BS Colour: 06 E 51
HEX Colour: #F18F59
RGB Colour: 241; 143; 89
ACIDS & ALKALIS
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ACID PIPELINE TAPE
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ACID FLOW LABEL
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ACID & ALKALI FLOW TAPE
'Heather' coloured labels and tapes indicate the presence of caustic acids and alkalis.
BS Colour: 22 C 37
HEX Colour: #7D7A9B
RGB Colour: 135; 122; 155
Label Pipes Correctly with Label Source
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