Volume-II - GAIL
Volume-II - GAIL
Volume-II - GAIL
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(vi) Application of FBE powder, adhesive and polyethylene, including<br />
characteristics, temperature, line speed, application window, curing time,<br />
etc.<br />
(vii) Quenching and cooling, including time and temperature.<br />
(viii) Quality assurance system, Inspection and testing methods and reporting<br />
formats, including instrument and equipment types, makes and uses etc.<br />
(ix) Detailed method of repair of coating defects duly classified depending upon<br />
nature and magnitude of defects and repairs thereof including coating<br />
stripping technique.<br />
(x) Details of instrument and equipment calibration methods including relevant<br />
standards and examples of calibration certificates.<br />
(xi) Complete details and inventory of laboratory and equipment for procedure<br />
qualification and regular production.<br />
(xii) Pipe handling and stock piling procedures.<br />
(xiii) Sample of recording and reporting formats, including laboratory reports,<br />
certificates and requirement as per clause 6.0 of this specification.<br />
(xiv) Complete details of test certificates for raw materials including test<br />
methods standards used.<br />
(xv) Test certificates from PE compound manufacturer for tests for thermal<br />
aging coating resistivity and aging under exposure to light. These test<br />
certificates shall not be older than three years.<br />
(xvi) Health, safety and environment plans.<br />
(xvii) Storage details of coating materials and chemicals.<br />
(xviii) Continuous temperature monitoring at various stages of coating.<br />
Procedure Qualification Tests (PQT) shall be carried out only after obtaining written<br />
approval of the above procedure from COMPANY. No change in the procedure shall<br />
be made after approval has been given by the COMPANY. However, unavoidable<br />
changes shall be executed only after obtaining written approval from COMPANY.<br />
7.3 Prior to start of production, CONTRACTOR shall, at his expense, carry out a coating<br />
procedure qualification trial for each pipe diameter, and for each plant, to prove<br />
that his plant, materials, and coating procedures result in a quality of end product<br />
conforming to the properties stated in clause 5.3, relevant standards, specifications<br />
and material manufacturer’s recommendations. CONTRACTOR shall give seven(7)<br />
working days notice to witness procedures and tests.<br />
<strong>GAIL</strong> (INDIA) LIMITED<br />
3 – LAYER POLYETHYLENE<br />
COATING OF LINEPIPES<br />
<strong>GAIL</strong>-TS-COATING-3LPE<br />
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