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Gre installation guide Quality Control Quality Assurance General To assure good workmanship only quali ?ed and certi ?ed personnel shall be allowed to work on the installation of GRE pipeline systems Always strictly follow the installation manuals next to

Quality Control Quality Assurance General To assure good workmanship only quali ?ed and certi ?ed personnel shall be allowed to work on the installation of GRE pipeline systems Always strictly follow the installation manuals next to the necessary instruction guidelines When making joints it is necessary to execute the required steps in the correct sequence Never compromise on work quality and follow the instructions assigned from handling and storing through joining and installing GRE materials Joint traceability As part of the quality control and on behalf of the traceability of adhesive bonded joint data the following information should be registered during installation for each joint Name or registration info of the pipe- ?tter Joint identi ?cation number Start end of the curing process Heat blanket identi ?cation number Identi ?cation number of adhesive batch Temperature of heating blanket optional Possible installation defects Following table lists a number of defect types along with acceptance criteria and recommended corrective actions Defect Inspection Cause method Acceptance criterion Corrective action Incorrect spool dimensions Visual Misaligned spools Visual Misaligned joint Visual Incorrect prefabrication Misaligned components e g anges Movement during cure Incorrect shave dimensions Can di ?erence be compensated elsewhere in the system Can system not be compensated Accept Reject Can di ?erence be compensated elsewhere in the system Can system not be compensated Accept Reject Not permitted Reject Diameter restriction Visual Application of too much adhesive Maximum height h of adhesive If accessible remove seam is ID or mm by grinding whichever is smaller Impact wear or Visual abrasive damage Incorrect transport or handling According to ISO Annex A Table A Major defect replace Minor defect repair Leaking joint Hydro test Joining not properly performed Not permitted Reject Table Defect acceptance criterion corrective action C