BS IS0 4427-1:2019 BSl Standards Publication Plastics piping systems for water supply and for drainage and sewerage under pressure - Polyethylene (PE) Part 1: General bsi. BSISO4427-1:2019 BRITISH STANDARD Nationalforeword This British Standard is the UK implementation of IS0 4427-1:2019. It supersedes BSIS0 4427-1:2007+A1:2015,which is withdrawn. The UKparticipation initspreparation was entrustedto Technical A listoforganizationsrepresented onthis committee can be obtained on requestto its secretary. This publication does not purportto include all the necessary provisions ofa contract.Users areresponsiblefor its correctapplication. @TheBritishStandards Institution2019 PublishedbyBSI Standards Limited2019 ISBN9780580524165 ICS23.040.20;93.025;91.140.60;23.040.45 Compliance with aBritish Standard cannot conferimmunityfrom legal obligations. This British Standard was published under the authority of the StandardsPolicyand Strategy Committeeon31August2019. Amendments/corrigendaissued sincepublication Date Text affected BS IS04427-1:2019 ISO INTERNATIONAL STANDARD 4427-1 Second edition 2019-08 Plastics piping systems for water supply and for drainage and sewerage under pressure Polyethylene (PE) Part 1: General Systemesdecanalisationsenplastiquedestinésa I'alimentation eneauetauxbranchementsetcollecteursd'assainissementsous pression-Polyethylene(PE) Partie1:Généralités Reference number IS0 4427-1:2019(E) ISO @ IS0 2019