Use at filling points, drain valves and flanging joints 

• The Health & Safety (Safety Signs and Signals) Regulations 1996 place a great deal of emphasis on the labelling and identification of pipework 
• It is recommended that pipes are identified at points where employees are likely to be exposed to the contents of the pipe 
• 92//58 EEC Pipe Marking Directive provides guidance on the use of different colours to identify the contents of pipework and its associated risks