1 Scope
This document specifies the requirements and test methods applicable to factory applied
internal polyurethane lining for ductile iron pipes according to ISO 2531, ISO 7186 and ISO 16631.
It covers internal linings for use in the conveyance of raw water, potable water and
sewage water for operating temperature up to 50 °C.
BS ISO 24131-1:2023 history
2023BS ISO 24131-1:2023 Internal protection by polymeric lining for ductile iron pipes. Requirements and test methods - Polyurethane lining