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Overview ISO 13268:2022 specifies a laboratory test method to determine the initial (short‑term) tangential ring stiffness of thermoplastic shafts or risers used in inspection chambers and manholes f…
Overview EN ISO 13268:2023 / ISO 13268:2022 specifies a laboratory test method to determine the initial (short‑term tangential ring stiffness) of thermoplastic shafts or risers used in inspection cha…
1 Scope This document specifies a test method for assessing the initial (short-term) tangential ring stiffness of riser shafts for thermoplastics inspection chambers or manholes.
