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This guide describes the principles for carrying out periodic requalification of ESPN piping and sets out the leaktightness criteria.
- the contents of the requalification file,
- the requalification inspection,
- the hydraulic proof test,
- the checks on safety accessories protecting the pipes.
PTAN RS 16.007 Ind E - ENGuide for Periodic Requalification of Class N2 or N3 ESPN piping
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