Volume-II of IV - GAIL

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5.2.3 All the coated joints shall be subjected to Holiday Detection test. 5.2.4 An installed sleeve with more than two holiday shall be stripped and a new one be installed. 6.0 TESTING a) OWNER reserves the right to test one out of every 30 joint coating subject to a minimum of 2 joints. CONTRACTOR shall provide all assistance in removing and testing of field joint coatings. From each test sleeve, one or more strips of size 25 mm x 200 mm shall be cut one perpendicular to the pipe axis and slowly peeled off. This test shall be conducted between either sleeve and metal or sleeve and mill coating as per direction of Owner/ Engineer-incharge. b) The required peel strength shall be 60 N/cm (min.) at 23°C. The system shall fail only in the adhesive layer. No failure either in adhesion to steel or adhesion to backing shall be permitted. The adhesive layer that remains on the pipe surface shall be free of voids resulting from air or gas inclusion. c) If the sleeve taken away for test does not meet the requirement of clause 6.0 (b), the adjacent two sleeves do not meet the requirements of clause 6.0 (b) the field joint coating shall be stopped until OWNER is satisfied with application methods. d) For the test tensile strength, two parallel incisions spaced 1 CM. Apart are made right down to the surface of the steel. A further incision shall then be at right angles to the first angles to the first two incisions. With the aid of a 1 cm. Wide knife the coating is lifted over a length of about 2 cm. And clamped into the tensile tester, where upon a uniform pull is exerted at an angle of 90 degree. The tensile strength shall be more than a 2500psi. e) Coating thickness shall be checked by non destructive method for each field joint. \\Akjha\work contrac\standard TS for Pipe Line WC (Vol-II) MASTER FOLDER\74 field joint for HDD crossing\Specification for FPJ Coating for HDD Crossing - 074-f.doc Page 12 of 14
7.0 REPAIR OF FIELD JOINT COATING 7.1 If a field joint is detected to be unacceptable after inspection and testing as per clause no. 6.0 of this specification. The CONTRACTOR shall , at his own cost : - determine the cause of the faulty results of the coatings. - mobilise the services of expert of manufactures, if required. - test to the complete satisfaction of the OWNER, already completed field joint coatings. - stop joint coating until remedial measures are taken against the causes of such failures, to the complete satisfaction of the OWNER. 7.2 CONTRACTOR shall replace all the joints coating found or expected to be unacceptable as per clause no. 6.0 of this specification. 7.3 CONTRACTOR shall, at his own cost repair all areas where the coating has been removed for testing by the OWNER or by the CONTRACTOR to the complete satisfaction of the OWNER. 7.4 The upright edges of the damaged areas shall be chamfered, in addition to the steel shall be free from rust, dirt, oil and grease. The coating around the damaged area shall be roughened. After thorough mixing (in accordance with the recommendations of the manufacturer) the filler shall be applied, to sufficient Thickness with the aid of stooping knife, whilst observing ample overlap hardening. The material will require the approval of OWNER. 7.5 After the coating work on welded joints and repairs to the coating have been completed, The coating area as a whole shall be tested with sparktester before pull back/ lowering/jacking the pipeline. 7.6 Company shall be entitled to check the coating on buried pipelines or parts of pipelines with equipment such as the “Pearson meter” and the resistance meter. If the coating defects are established, the Contractor shall be responsible for excavation at such points, repairing the coating, spark testing and backfilling the excavations without extra charge. \\Akjha\work contrac\standard TS for Pipe Line WC (Vol-II) MASTER FOLDER\74 field joint for HDD crossing\Specification for FPJ Coating for HDD Crossing - 074-f.doc Page 13 of 14
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GAIL (India) Limited TENDER DOCUMEN
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D:\old data\FATEH\IDPL_Dholpur\SCC\
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MECON LIMITED REGD. OFF: RANCHI (BI
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MECON LIMITED REGD. OFF : RANCHI (B
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Pipe Size, Out Side Diamter- Inches
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SPECIFICATION FOR HYDROSTATIC TESTI
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0 C C; \ts\Tender-A,4.doc. TABLE -
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SPECIFICATION FOR MAJOR WATER CROSS
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SPECIFICATION FOR PIPING FABRICATIO
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Pipe Size, Outside diameter Inches
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CONTENTS Sl. Description Page No. N
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1.0 GENERAL 1.1 These technical spe
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completion and testing on system ar
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5.1.2 Mill scale, rust, rust scale
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5.2.3 Maual or hand tool cleaning M
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c. Ingredients shall be kept proper
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the bottom. This work shall be done
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S. NO. DESCRIPTION 1. MANUAL OR HAN
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S. NO. DESCRIPTION 3. BLAST CLEANIN
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6.0 PAINT MATERIALS Paint manufactu
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PAINT MATERIALS TABLE NO.: 6.2FINIS
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Notes: 1. Covering capacity and DFT
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TABLE 7.1: PRE-ERECTION/ PRE-FABRIC
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NOTE 2 : FOR EXTENAL SURFACE OF RCC
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TABLE 10.0: FIELD PAINT SYSTEM FOR
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TABLE 12.0 : FIELD PAINT SYSTEM FOR
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TABLE 14.0 : PAINTING UNDER INSULAT
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17.0 STORAGE 17.1 All paints and pa
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. Intersection points & change of d
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20.3 Method of Camouflaging 20.3.1
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it would be in the interest of the
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24.5 Tests required for evaluation
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S. No. MANUFACTURER NAME LIST OF RE
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S. No. MANUFACTURER NAME LIST OF RE
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S. NO. LIST OF RECOMMENDED MANUFACT
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SPECIFICATION FOR REPAIR OF PIPELIN
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MECON LIMITED DELHI PROCESS & PIPIN
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SPECIFICATION FOR DOCUMENTATION FOR
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1.0 SCOPE 1.1 This specification co
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2.3 Monthly • Priced variations
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- Major water crossings - Waste dis
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- Location of further appurtenance
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Document2 SPECIFICATION FOR PIPELIN
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SPECIFICATION FOR VENTS, DRAINS AND
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1.0 SCOPE TABLE OF CONTENTS 2.0 COD
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The last letter indicates type of m
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10.0 GASKETS 10.1 Spiral wound meta
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13.7 Unless specified otherwise. Va
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determination of surface profile -
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) Peel Strength shall be as follows
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accordance with ISO:8503-3 or ISO:8
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4.3 Application Procedure for Corro
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Company Representative reserves the
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SPECIFICATION FOR 3-LAYER POLYETHYL
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1.0 SCOPE This specification covers
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y. CSA Z245.20-98 : External Fusion
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which failed. If all tests pass, th
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5.3.3 Properties of Coating System
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health and safety sheets and manufa
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7.4.4 Chemical Pre-Treatment 7.4.4.
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specified temperature i.e. one at e
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• Any time when in COMPANY’s op
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8.6.4 After the de-ionised water wa
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8.13.4 The CONTRACTOR shall check t
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i. Electrostatic application of epo
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9.2.12 Failure to comply with any o
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area on the pipe shall show presenc
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10.10 Epoxy Layer Adhesive Test a.
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11.3 The CONTRACTOR shall load, unl
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• Damages caused to coating by ha
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14.6 The CONTRACTOR’s Quality sys
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Table - 1 Manufacturers Data on Coa
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MECON LIMITED Delhi PROCESS & PIPIN
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PROCESS & PIPING DESIGN SECTION MEC
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SPECIFICATION FOR PIPELINE PRE-COMM
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C O N T E N T S Clause No. Title Pa
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Above 250 & upto 500 - Deploy one q
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Page 512 and 513: OBSERVATION OF QUALITY ASPECTS Job
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MECON LIMITED REGD. OFF RANCHI PROC
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C O N T E N T S Sl.No. Description
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e measured. Hence the depth of meas
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6.7 Graphical representation of exi
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GAIL (India) Limited TECHNICAL SPEC
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1.0 SCOPE Cathodic Protection Power
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limit feature shall be provided in
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e) Pipeline under protected f) Auto
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- Dimensional checking - Proper mou
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Volume-II of IV - GAIL

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