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This International Standard specifies the pipes (mains, sub-mains and laterals) with nominal outside diameters from 12 mm up to and including 63 mm made from polyethylene (PE) intended to be used for the conveyance of water for irrigation. It also specifies the general properties of PE and the test parameters for the pipes designated as PE 32 and PE 40 by checking referenced points as given in 4.4, to be used under the following conditions: - nominal pressures of PN 2,5, PN 4, PN 6, PN 8 and PN 10, as applicable, - at temperatures up to and including 45 ºC, as specified in Annex A. NOTE Pipes with a diameter of 75 mm and nominal pressure (PN) of 4 bar1) are also included in this International Standard.