Volume-II - GAIL
Volume-II - GAIL
Volume-II - GAIL
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CONTRACTOR shall install requisite equipment and plant in roofed and adequately<br />
weather protected areas.<br />
3.2 Plant equipment, machinery and other facilities shall be in first class operating<br />
condition to atleast meet the job requirements of quality and production. Worn out<br />
and improvised plants are not acceptable.<br />
3.3 CONTRACTOR shall, at his own responsibility and cost, provide and prepare all<br />
necessary area for the storage of bare and coated pipe and all other materials, for<br />
coating yard, stock-piling and other temporary installation. For each area,<br />
CONTRACTOR shall provide to stipulate servitude agreements as required with the<br />
relevant Authorities, and, on work completion, to clean, restore and pay servitude and<br />
claims for damages, as applicable.<br />
3.4 CONTRACTOR shall at its own responsibility and cost, provide for water and power<br />
supply and other utilities and consumables and obtain authorisation regarding access<br />
roads and other permits required for the execution of works conforming to all the<br />
requirements of the governing authorities.<br />
3.5 CONTRACTOR shall at its own expense provide a fully equipped laboratory and test<br />
facilities with adequate inventory to carry out tests required for the procedure<br />
qualification and during regular production. Outside testing for qualification and<br />
regular production is not acceptable to COMPANY.<br />
3.6 The CONTRACTOR shall be fully responsible for adherence to all statutory regulations<br />
applicable for handling and disposal of the hazardous chemicals during the coating<br />
works.<br />
3.7 The CONTRACTOR shall be responsible for obtaining all statutory approvals/<br />
clearances from relevant Authorities including Pollution Control Board, as applicable<br />
for the coating plant(s).<br />
4.0 MATERIALS<br />
4.1 The three layer coating system shall comprise of a powder epoxy primer, polythylene<br />
adhesive and a polyethylene top coat. Coating materials shall be suitable for the<br />
service conditions and the pipe sizes involved. The coating materials i.e. epoxy<br />
powder, adhesive and polyethylene compound shall have proven compatibility. The<br />
coating system and materials shall be pre-qualified and approval COMPANY in<br />
accordance with provision Annexure-I of this specification. CONTRACTOR shall obtain<br />
prior approval from COMPANY for the coating system and coating materials.<br />
4.2 The coating materials Manufacturer shall carry out tests for all properties specified in<br />
para 5.3.1 and 5.3.2 for each batch of epoxy, adhesive and polyethylene compound.<br />
In addition, the Manufacturer shall also furnish Infra-red Scan for each batch of epoxy<br />
powder. The coating materials manufacturer shall issue test certificates as per DIN<br />
EN 10204, 3.1B for each batch of materials supplied to CONTRACTOR and the same<br />
shall be submitted to COMPANY for approval prior to their use.<br />
4.3 In addition to Manufacturer’s certificate, the CONTRACTOR shall draw samples<br />
from each batch of epoxy, adhesive and polyethylene in the presence of COMPANY<br />
Representative and test for the following properties at the coating yard at least one<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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