Pipe Marking - European Standards
| SERVICE | LABEL COLOUR |
| Water |
Green BS - 12D45 RAL - 6003 |
| Gas |
Yellow BS - 08C35 RAL - 1007 |
| Air |
Light Blue BS - 20E51 RAL - 5024 |
| Fire Service |
Red BS - 04F53 RAL - 3020 |
| Steam |
Silver/Grey BS - 10A03 RAL - 9007 |
| Oil |
Brown BS - 06C39 RAL - 8007 |
| Acids & Alkalis |
Violet BS - 22C37 RAL - 4005 |
| Electrical |
Electrical BS - 06E51 RAL - 2008 |
| Other Fluids |
Black BS - 00E53 RAL - 9005 |
Visible pipes containing or transporting dangerous substances and preparations, must be labeled in accordance with directives 67/548/EEC and 88/379/EEC.
Employers must provide safety signs where hazards cannot be avoided or adequately reduced by preventive measures or procedures used in the workplace. Labels used on pipes must be positioned visibly in the vicinity of the most dangerous points, such as valves and joints, and at reasonable intervals. The dimensions of the pipe markers must be proportionate to the labeling surface.
Labels on pipes and containers holding dangerous substances must clearly have the following information:
- The name of the substance
- The danger symbols, if any
- The standard phrases, if any
- The European Commission number(EC-No/EC#) or equivalent EC-No/EC# is the seven digit code that is assigned to chemical substances that are commercially available within the European Union
- For substances listed in Annex I, the words EEC label
Pipework markers shall be applied at the following locations:
- On all pipework leading into and away from a manifold system.
- Within one metre of pipework passing through a wall, bund wall, boundary fence or other barrier, or entering the ground.
- On all pipework in a loading gantry, adjacent to the main control valve or flow-meter for each pipe.
- Within one metre of hose connection points. On long runs of Pipelines at intervals not exceeding 50 metres where the pipeline is visible along its length, otherwise at 8 metres.
- On long runs of pipelines that travel from grade up into elevated pipe racks, markers shall be fitted to the individual lines at the point that the lines rise into the rack and then at the point the lines come down from the rack.
- On the suction and discharge piping adjacent to any pump.
- At tee connections, valves, and any other point where identification would be required in normal operation.
- Where pipework enters or exits a tank.
- At any point where identification is required in an emergency or of a hazard.
The following table specifies the colours to be used to identify pipelines and services in accordance with BS1710: 1984.
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