1 Scope
This part of EN 12201 specifies the characteristics of pipes made from polyethylene (PE 100, PE 80 and
PE 40) for buried and above ground applications, intended for the conveyance of water
for human consumption, raw water prior to treatment, drainage and sewerage under pressure,
vacuum sewer systems, and water for other purposes.
NOTE 1 For PE components intended for the conveyance of water for human consumption and raw
water prior to treatment attention is drawn to 5.3 of this European Standard. Components
manufactured for water for general purposes, drainage and sewerage may not be suitable
for water supply for human consumption.
It also specifies the test parameters for the test methods referred to in this standard.
In conjunction with Part 1 and Parts 3 to 5 of EN 12201, it is applicable to PE pipes, their joints and to joints with components of PE and
other materials intended to be used under the following conditions:
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a) allowable operating pressure, PFA, up to 25 bar 1);
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b) an operating temperature of 20 °C as a reference temperature;
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c) buried in the ground;
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d) sea outfalls;
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e) laid in water;
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f) above ground, including pipes suspended below bridges.
NOTE 2 For applications operating at constant temperatures greater than 20 °C and up to 40 °C,
see Annex A of EN 12201‑1:2011.
NOTE 3 Pipes constructions including barrier layers are not covered by this document.
EN 12201
covers a range of allowable operating pressures and gives requirements concerning
colours and additives.
It covers three types of pipe:
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—
d
n) including any identification stripes;
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— PE pipes with co-extruded layers on either or both the outside and/or inside of the
pipe (total outside diameter dn) as specified in Annex B, where all layers have the same MRS rating;
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— PE pipes (outside diameter dn) with a peelable, contiguous thermoplastics additional layer on the outside of the
pipe (‘coated pipe’) as specified in Annex C.
NOTE 4 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.
NOTE 5 Assessment of the resistance to slow crack growth of the PE pipe compound used for
the manufacture of products to this document is required in accordance with Table 2 of
EN 12201‑1:2011.