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Volume-II of IV - GAIL

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1.0 SCOPE<br />

This specification covers the minimum requirements for supply/ arrangement <strong>of</strong> all<br />

materials, plant, equipment, plant sites, consumables, utilities and application<br />

including all labour, supervision, inspection and tests etc. for application <strong>of</strong> external<br />

anti-corrosion coating <strong>of</strong> pipes by using 3 Layer Side Extruded Polyethylene Coating<br />

conforming to DIN-30670, 1991, `Polyethylene Coating <strong>of</strong> Steel Pipes and Fittings'<br />

and the requirements <strong>of</strong> this specification.<br />

2.0 REFERENCE DOCUMENTS<br />

Reference has also been made to the latest edition <strong>of</strong> the following standards,<br />

codes and specifications. The edition enforce at the time <strong>of</strong> floating the enquiry<br />

shall be termed as latest edition.<br />

a. ASTM D-149 : Standard Test Methods <strong>of</strong> Dielectric<br />

Breakdown voltage and Dielectric strength <strong>of</strong><br />

solid electrical insulating materials at<br />

commercial frequencies.<br />

b. ASTM D-257 : Standard Test Methods for D-C Resistance or<br />

conductance <strong>of</strong> insulating materials.<br />

c. ASTM D-543 : Standard Method <strong>of</strong> Test for Ressistance <strong>of</strong><br />

Plastics to Chemical Reagents.<br />

d. ASTM D-570 : Standard Method <strong>of</strong> Test for Water<br />

Absorption <strong>of</strong> Plastics.<br />

e. ASTM D-638 : Standard Test Method for Tensile<br />

Properties <strong>of</strong> Plastics.<br />

f. ASTM D-792 : Standard Test Method <strong>of</strong> Specific Gravity and<br />

Density <strong>of</strong> Plastics by Displacement.<br />

g. ASTM D-1238 : Test Method for Low Rate <strong>of</strong> Thermoplastics<br />

by Extrusion.<br />

h. ASTM D-1525 : Test Method for Vicat S<strong>of</strong>tening Temperature<br />

<strong>of</strong> Plastics<br />

i. ASTM D-1603 : Test Method for Carbon Black in Olefin<br />

Plastics<br />

j. ASTM D-1693 : Test Method for Environmental Stress<br />

Cracking <strong>of</strong> Ethylene Plastics<br />

\\Akjha\work contrac\standard TS for Pipe Line WC (Vol-<strong>II</strong>) MASTER FOLDER\14 3-layer pe coated line pipe\3-LPE Coating <strong>of</strong> Linepipes-TS-R2 14.doc Page 1 <strong>of</strong> 35

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