Plastics piping systems for renovation of underground gas supply networks - Lining with continuous pipes Ingestion-build-189776 3 in or 4 in

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Plastics piping systems for renovation of underground gas supply networks - Lining with continuous pipes Ingestion-build-189776 3 in or 4 inWhat is this standard about? This document, read in conjunction with ISO 112991, specifies requirements and test methods for pipes and fittings which are part of plastics piping systems installed as continuous pipes in the renovation of underground gas supply networks. It is applicable to polyethylene (PE) pipes of three different types: PE solid wall single layered pipes (nominal outside diameter, dn), including any identification stripes; PE pipes