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District heating and district cooling pipes — Bonded single and twin pipe systems for directly buried hot and cold water networks — Qualification testing of fitter cen:proj:73331

Scope

This document specifies the method of testing the knowledge and skill of a fitter who is required to carry out joints on-site on thermal insulated bonded single and twin pipe systems for directly buried hot and cold water networks for district heating according to EN 13941-1 and district cooling according to