I.S. 134, which specifies requirements for black polyethylene pipe Type 32 for use in cold water services and in flush, overflow, warning and waste pipe applications is replaced by the Irish Standard series I.S. EN 12201 and in particular by I.S. EN 12201-2 Plastics piping systems for water supply, and for drainage and sewerage under pressure – Polyethylene (PE) – Part 2: Pipes.
The Irish Standard series I.S. EN 12201 is developed by CEN TC 155 Plastics piping systems and ducting systems. These standards are not harmonised (i.e. pipes cannot be CE marked to them.) However, harmonised standards, against which product can be CE marked, are currently being finalised and will reference these standards.
I.S. EN 12201-2 specifies the characteristics for three grades of polyethylene pipes (PE 100, PE 80 and PE 40) for buried and above ground applications, including conveyance of water for human consumption, raw water prior to treatment, drainage and sewerage under pressure, vacuum sewer systems, and water for other purposes. The standard covers a range of maximum operating pressures and gives requirements concerning colours and additives. The standard notes that it is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national guidance or regulations and installation practices or codes.
Following the withdrawal of I.S. 134 , there will be no Irish standard specification for low density pipe for supply of water e.g. to livestock I.S. 135 , which applied to black polyethylene pipe type 50, for use in cold water services , diameter range 17mm to 110mm and recommended maximum working pressure 50 bars, is not being replaced. The related NSAI certification schemes for I.S. 134 and I.S. 135 will be phased out. Further information is available here or contact Yvonne Wilde, Manager, Standards Technical, NSAI. Phone: 01 8073800 Email: firstname.lastname@example.org