Volume-II of IV - GAIL

health and safety sheets and manufacturer’s recommended application
procedure.
d. Pipe heating, temperatures and control prior to epoxy application.
e. Complete details of raw materials including current data sheets showing
values for all the properties specified together with quality control and
application procedure recommendation from manufacturer(s).
f. Application of FBE powder, adhesive and polyethylene, including
characteristics, temperature, line speed, application window, curing time,
etc.
g. Quenching and cooling, including time and temperature.
h. Quality assurance system, Inspection and testing methods and reporting
formats, including instrument and equipment types, makes and uses etc.
i. Detailed method of repair of coating defects duly classified depending upon
nature and magnitude of defects and repairs thereof including coating
stripping technique.
j. Details of instrument and equipment calibration methods including relevant
standards and examples of calibration certificates.
k. Complete details and inventory of laboratory and equipment for procedure
qualification and regular production.
l. Pipe handling and stock piling procedures.
m. Sample of recording and reporting formats, including laboratory reports,
certificates and requirement as per clause 6.0 of this specification.
n. Complete details of test certificates for raw materials including test
methods standards used.
o. Test certificates from PE compound manufacturer for tests for thermal
aging coating resistivity and aging under exposure to light. These test
certificates shall not be older than three years.
p. Health, safety and environment plans.
q. Storage details of coating materials and chemicals.
r. Continuous temperature monitoring at various stages of coating.
Procedure Qualification Tests (PQT) shall be carried out only after obtaining
written approval of the above procedure from COMPANY. No change in the
procedure shall be made after approval has been given by the COMPANY.
However, unavoidable changes shall be executed only after obtaining written
approval from COMPANY.
7.3 Prior to start of production, CONTRACTOR shall, at his expense, carry out a
coating procedure qualification trial for each pipe diameter, and for each plant,
to prove that his plant, materials, and coating procedures result in a quality of
end product conforming to the properties stated in clause 5.3, relevant
standards, specifications and material manufacturer’s recommendations.
CONTRACTOR shall give seven(7) working days notice to witness procedures and
tests.
A batch representing a normal production run, typically 15 pipes, shall be coated
in accordance with the approval coating procedure and the coating operations
witnessed by COMPANY Representative. Out of these pipes, at least one pipe
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