schedule ii scope of supply a scope of supply for hdpe … · 2019-04-23 · a scope of supply for...

Prabha Energy Private Limited

PEPL/CBM/PR/M/07/PE_PIPE & Fittings

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SCHEDULE II

SCOPE OF SUPPLY

A SCOPE OF SUPPLY FOR HDPE PIPES

1.0 INTRODUCTION ABOUT PROJECT

The North Karanpura Coalfield is the western most and second largest (1230 km2) coal basin of the Hazaribagh, Palamu and Chatra districts of Jharkhand, India. It is situated about 60 km northwest of Ranchi and 20km SW of Hazaribagh. North Karanpura CBM Block (NK-CBM-2001/1) is a part of the North Karanpura Coal field covering an area of 340 sq. Kms. Subsequent to relinquishment of 68.5 sq.km area after initial assessment, 271.5 sq.km are left for CBM exploration and development. Presently, approx. 49 sq. kms area has been carved out for initial development with a provision for further development in future. The North Karanpura block area is sparsely populated with a forest cover of over 20% of the area. Active coal mines are few in this coalfield and all are located outside the block area. The block area is approachable from Ranchi on the southern side and Hazaribagh on the northern side by all-weather metaled road, which in turn connects to nearby towns by fair-weathered metaled roads. The nearest domestic airport is located at Ranchi. Ramgarh is the nearest township with railway station.

The location map of North Karanpura CBM block

Map of North Karanpura CBM Block Showing Block Boundaries



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Map of North Karanpura CBM Block Showing Sectors, Relinquished Area, FDP and NTPC Coal Block

PEPL, referred to as Company, on behalf of consortium partner comprises of ONGC, IOCL & PEPL proposes to start CBM development operations by drilling 68 vertical wells in North Karanpura CBM Block NK-CBM-2001/1, Jharkhand starting in the year of 2017-18. Company plans to develop surface facilities for 74 wells (6 existing wells & 68 new development wells).

2.0 REFERENCE DOCUMENTS AND ATTACHMENTS

The applicable sections of the latest editions of the codes, standards and specifications listed below shall be considered part of this Scope of Supply. In case of any conflict between the reference documents, the Vendor shall notify the Buyer in writing. In general, the order of invoked priority for specifications and reference documents shall be:

Scope of Supply

Technical Documents

Industry and Government Standards

Price Schedule - Annexure A

2.1 Technical Document: Material Take-Off for HDPE pipe shall be considered as part of this Scope of Supply.

2.2 Industry and Government Standards

The latest edition of the following listed standards, in addition to the applicable standards referenced in the Technical Documents, shall be considered part of this specification:



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American Society of Mechanical Engineers (ASME)

ASME B31.4 Pipeline Transportation System for Liquid Hydrocarbons and Other Liquids

ASME B31.8 Gas Transportation & Distribution Piping System

ASME B31.3 Process piping

American Society for Testing and Materials (ASTM)

All ASTM Standards specified in the MTO

ASTM D 3350 Standard Specification for Polyethylene Plastic Pipe and Fittings Material

3.0 DESIGN DATA

3.1 Gas Service (Underground Only)

Service: Process Gas (Wet)

Design Standard : ASTM B31.8

MOC : HDPE PE 100 / PE 4710

Design Temperature : 0 – 45oC

Maximum Allowable Operating Pressure (MAOP) : 5.00 Barg

Design Factor :0.32

Size Range : NPS 2” - 12”

3.2 Water Service (Underground Only)

Service: Process Water

Design Standard : ASTM B31.4

MOC : HDPE PE 100 / PE 4710

Design Temperature : 0 – 45oC

Maximum Allowable Operating Pressure (MAOP) : 9.5 Barg

Design Factor :0.63

Size Range : NPS 2” - 10”

4.0 SCOPE OF SUPPLY

4.1 OUTLINE SCOPE OF SUPPLY

4.1.1 This document defines the Scope of Supply to be performed under the Material Requisition.

4.1.2 Seller’s scope shall include, but not be limited to the following:

4.1.2.1 Sourcing and supply of the material listed in the requisition (HDPE pipe)

4.1.2.2 Vendor data required in the requisition



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4.1.2.3 Inspection and testing as per material requisition and approved Inspection and Test Plan.

4.1.2.4 Preparation, preservation and packing for shipment including material

4.1.2.5 Receiving Inspection at site

4.1.3 The material shall be supplied in accordance with the documents contained in the MR.

4.1.4 Seller shall note that compliance with the Scope of Supply & specifications stated therein shall not relive the Seller from the responsibility of supplying pipes to meet the start up, operating and performance guarantee conditions as per this Material Requisition.

4.2 DETAIL SCOPE OF SUPPLY

4.2.1 Seller’s Scope of Supply

4.2.1.1 Seller’s scope includes supply of the material identified on MR. Seller shall note that the scope of supply stated herein is to be considered as the minimum requirement. Any item necessary to meet the requirements of this Scope of Supply and statutory rules / codes though not explicitly stated herein, shall be deemed included in Seller’s Scope of Supply. Seller shall have full responsibility for supply of the material, which is complete and meets all identified codes, standards and Project requirements.

4.2.1.2 Material to consist of items identified by size, quality and description

4.2.1.3 Seller’s Scope includes supply of Special tools (if any) required for unloading the pipes at Buyer’s yard. A detailed list of such Special tools shall be submitted to Buyer along with the Bid.

4.2.1.4 Seller shall procure HDPE Resin material from reputed source in India, Middle East, Europe & USA and approved by Buyer. If Seller is sourcing the natural resin, then P – type material shall be used for carbon black master patch which is suitable for gas application. Seller to take prior approval for sourcing this material.

4.2.1.5 All HDPE pipe shall be provided in the largest spoolatable lengths, unless pipe diameter prohibits this. For diameters that are too large to be spooled, the minimum length shall be 12 M (nominal) unless specified otherwise.

4.2.2 Quality Assurance, Inspection, Testing and Certification

ITP FOR Raw Material shall specify the Resin Name, applicable ASTM standard and the material Cell Classification.

ITP for HDPE Pipe shall specify the Resin Name, applicable ASTM standard, Material Cell Classification and SDR



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Seller shall submit Inspection & Test Plan for the Raw Material (Resin) as per ASTM D2513, for the HDPE pipes in Gas Service and for HDPE pipes in Water service as per ASTM F2619

Seller shall submit the Material Test Certificates from the Resin Manufacturer for the Raw Material(Resin).The Material Test Certificates from the resin manufacturer shall include following as the minimum:

Name of Resin

Cell Classification

Pipe Material Designation Code e.g.PE 100 or PE 4710 etc

Test values of physical properties such as Density, Melt Index, Flexural modulus, Tensile Strength at Yield, Slow Crack Growth Resistance and Resistance and Hydrostatic Strength Classification etc

Color & UV Stabilizer

Thermal Temperature Test Results

Elongation % at Break

References of applicable test methods for each property

Seller shall carry out Type Testing of HDPE Pipe and Resin Material at a reputed independent laboratory such as CIPET etc.

Inspection & Test Plan for Type Testing shall include all include all ASTM D2513 &ASTM F2619testing requirements and shall be submitted for Company’s review and approval prior to approval of Testing.

Test for the Slow Crack Growth (SCG) Resistance as per the ASTM F1473 or ISO 13479 shall be carried out at a reputed independent laboratory. If, SCG has already been carried out by the Seller then Test Reports for the same shall be furnished by the Company.

Seller shall submit Type Test Reports for the HDPE Pipe and Resin Material for Company’s review and Comments.

Following are the minimum Inspection & Testing requirements for the HDPE pipes as per the ASTM D2513(Gas Service ) during the production of HDPE pipes.

For Raw Material ( Resin)

Test Type Method Frequency Acceptance Criteria

Cleanliness Visual Per Batch No foreign Particles



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Density ASTM D1238 Per Batch Table 1 of ASTM D2513

Melt Index ASTM D1238 condition 190/2.16

One sample per size Category C, Table-5 of ASTM D2513

Thermal Stability ASTM D3350 Per batch Min 220 deg C

Flexural Modulus ASTM D790 Per Resin Type 758- 1103 Mpa

Slow Growth Crack Resistance

ASTM F1473 Per Resin Type Min 500 hrs

MRS Validation for PE pipe at 20 deg C(Type Test)

ISO 9080/ISO 12162 Per Resin Type 10 Mpa

For HDPE Pipes:


Visual workmanship Yellow Strip

Visual Inspection One Sample/hr size Section 5.2 of ASTM D2513

OD, Wall Thickness, Toe-in, Ovality, Length

ASTM D2122 OD-1 sample/hr/size

WT- Table A1.2

Toe-in-3 samples/day from each size

Ovality- sample/day from each size(applicable for coiled pipe)

Lenghth-10 samples/day from each pipe

Wall Thickness

Section 5.3 of ASTM D2513 is applicable up to 16” inch

Minimum Hydrostatic Burst Pressure

ASTM D1599 Table A1.2 Section 5.4 of ASTM D2513

Chemical Resistance ASTM D543 & ASTM D638

5 Specimens with each chemical

Section 5.5 of ASTM D2513

Resistance to Rapid Crack Growth

ISO 13477 See Section 5.10 Section 5.10 of ASTM D2513



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Inside Surface Ductility Bend Back

D2513 One sample per survey

Section of ASTM D2513

5.12.1.2

% Elongation at Break Thermal Stability

D638

D3350

SIZE 5.12.2.1

5.12.3

Elevated Temperature Sustained Pressure Test

ASTM D1598, any one condition from Table A1.1

Six random specimens from Pipe of Size 4”

A1.2.1.2 of ASTM D2513

Squeeze off Test ASTM F1563& D1598

Section 5.13 a) Section 5.13 of ASTM D2513 is applicable upto 16” size

Outdoor Storage stability(Carbon Black Content)

ASTM D1603/D4218 Per Batch Code C, Section 4.6 of ASTM D2513

Markings 3.0 Size, e.g. 4”

4.0 Sizing System e.g. IPS

5.0 SDR Number

6.0 Manufacturers’ Name

7.0Service Gas /Water whichever is applicable

8.0 Cell Classification or Pipe Classification

9.0 ASTM D2513/ASTM F2619 whichever is applicable

10.0 Date of Manufacture

11.0 PEPL Stock Indicator

1 sample/hr/size As per approved ITP



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Following are minimum Inspection & Testing Requirements for the HDPE pipes as per ASTM F2619 (Water Service) during the production of HDPE Pipes.

For Raw Material (Resin)


Cleanliness Visual Per Batch No foreign Particle

Density ASTM D1238 Per Batch ASTM F2619

Melt Flow Rate ASTM D792/D1505 Per Batch ASTM 2619

Thermal Stability ASTM D3350 Per batch Min 220 deg C

Flexural Modulus ASTM D790 Per Resin Type 759- 1103 Mpa

Slow Growth Crack Resistance

ASTM F1473 Per Resin Type Min 500 hrs

MRS Validation for PE pipe at 20 deg C(Type Test)

ISO 9080/ISO 12162

Per Resin Type 10 Mpa


Visual Workmanship

Purple Strip

Visual Inspection One sample/hr/size Section 5.1 of ASTM F2619

OD, Wall Thickness, Toe-in,Ovality, Length

ASTM D2122 OD-1sample /hr /size WT-Table A1.2

Toe-in- 3 samples /day from each size

Ovality- 1 sample /day from each size( applicable for coiled pipe)

Length-10 samples /day from each size

Section 5.2 of ASTM F2619

Outside surface Irregularity

ASTM F2619 1 sample/day from each size

Table 2 of ASTM F2619

Short Term Pressurization

ASTM D1599 OR D2290

1 sample per size Section 5.5.1 or 5.5.2 of ASTM F2619



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For HDPE Pipes

If the test results are not in compliance with the relevant ASTM standards; Note A1.2 of ASTM D2513 shall be referred for pipes in Gas Service and Section 9.1 of ASTM F2619 shall be for pipes in Water Service.

4.2.2.1 The material shall be inspected by Buyer and or Buyer’s appointed Third Party Inspection Agency (TPIA) as per MR & approved ITP.

4.2.2.2 TPIA is in Buyer’s Scope and will be appointed by the Buyer’s.

4.2.2.3 Seller shall submit inspection and test plan (ITP) for Buyer’s review and approval.

4.2.2.4 Material certification shall be to EN 10204 Type 3.1 as a minimum.

4.2.2.5 The Seller shall issue inspection to the Buyer for all test mentioned in the approved ITP. The Buyers and /or Buyers representatives reserves the right of Inspection and testing at the Seller’s Sub – Seller’s works.

4.2.2.6 The Buyer shall issue a Release for Shipment for each shipment after review of the Seller’s Quality Verification Documentation.

4.2.3 Preparation for Shipment and Preservation

4.2.3.1 Seller shall supply a comprehensive packing list, for each shipment, clearly identifying the bulks supplied, with detail description and quality.

4.2.3.2 Seller shall carry out a detail inspection of all the shipments prior to delivery,with respect to packing list in order to ensure the completeness of the material.Buyer reserves the right to dispatch its authorized representative to witness the inspection.

4.2.3.3 Supplier of HDPE Pipes shall make necessary arrangements for optimum utilization of space time & cost and apply techniques /methods such as Nesting during transporting of HDPE Pipes.

Inside Surface Ductility Bend Back Test % Elongation at Break

DF629 1 sample per size Sections of ASTM F2619

5.3.2

5.3.1

Elevated Temperature Sustained Pressure Test

ASTM D1598 any one condition from Table 5

Three random specimen from Pipe of Size 4”

Section 5.4.1 of ASTM F2619

Carbon Black Content ASTM D4218/D1603

1 Sample per day Section 5.6 of ASTM F2619



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4.2.4 Receiving Inspection at Site

Within thirty days of receipt of material at site, an Inspection of the material shall be carried out by the representatives of Buyer. The objective of the inspection is to check and verify completeness of supply including damages. A report shall be prepared identifying the list of short receipt / missing / damaged supply (if any). Buyer shall give Seller two weeks to discuss the report.

Seller shall ensure prompt and time bound replenishment of all short receipt damaged items within Buyer’s project schedule.

4.3 TECHNICAL REQUIREMENTS

4.3.1 General requirements

4.3.1.1 All bulk piping materials shall be supplied in strict accordance with the applicable technical requirements in this scope of supply and with the applicable referenced standards.

Vendor shall quote on piping materials in the MTO that he can supply to meet the exact requirements of this scope of supply. Alternate quotes, unless requested to the specifications described in the MTO will not be accepted.

The following documents are part of this Scope of Supply:

Seller Documents Requirement Schedule (SDRS). Inspection Test Plan (Furnished by Seller, approved by Buyer)

The SDRS specifies the required documentation that the vendor shall provide and states the required time frame and number of copies to be supplied. The Inspection test Plan specifies the inspection and test activities to be performed and level of control during the manufacture of materials.

Materials shall be recently manufactured, new and un unused without any repairs of first quality (not second grade) conforming to relevant specification or other applicable specifications.

Tests for the Raw Material (Resin) and Pipes shall be carried out during the production as [per ASTMD2513 (Gas Service) and ASTM F2619 (Water service) for each resin batch or as mutually agreed between Company and Seller. The samples required to fulfil these tests shall be taken at random throughout the resin batch.

4.3.2 Specific requirements

Unless specified differently in the requisition, the following material standards shall be applicable for each listed component type.



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High density Polyethylene Pipe for Gas Service

Grade: PE 100 / PE 4710 Cell classification: PE 445576C as defined in ASTM D3350 Dimensional per ASTM D2513. However the outside diameter & minimum

wall thickness shall meet the requirements specified in the MTO. The Hydraulic design Basis of HDPE materials for gas service shall have

been validated per section 5.9 of ASTM D2513 within five years of the date of manufacture. The production of the materials shall not have substantial changed between the time of validation and the time of manufacture. Any substantial change in the production of the material shall warrant re-validation of the process.

High density Polyethylene Pipe for Water Service

Grade: PE 100 / PE 4710 Cell classification: PE 445576C as defined in ASTM D3350 Dimensional per ASTM D2513. However the outside diameter & minimum

wall thickness shall meet the requirements specified in the MTO.

For Material not specially listed, the material standards called out in the item description shall supply.

a) HDPE Pipe Supply Length, (New Supply) per below:

Seller shall supply HDPE Pipes in length as per the details provided below:

Size 4” - supply shall be in coils

Size 4” - Coil Size should be either 100 meters or more

Above 4” Size- 12 meter (nominal) minimum length

b) Short Length of Pipes, (New Supply) per below:

In case of power failure, there is a possibility of defects on the pipe surface which are not acceptable. Such defective length of pipes shall be cut and pipes with reduced length between 6m to 11m shall be supplied. Short length of supply quantity shall not exceed more than 2% of the total PO quantity of each size.

4.3.3 Marking

All piping materials shall have permanent identification markings in accordance with the applicable ASTM specification, and as specified herein as a minimum.

The minimum information to be marked on all pipes shall be follows:

Size, e.g. 20”

Sizing System e.g. IPS



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SDR Number

Manufacturers’ Name

Service: Gas/Water, whichever is applicable

Cell classification or Pipe Material Designation Code

ASTM D2513/ASTM F2619 whichever is applicable

Date of Manufacture

All pipes shall be provided with outside surface color strips as specified in the MTO. These color strips shall be inseparably co-extruded as part of the pipe outside surface.

Cut pipe ends shall be squarely cut and clean without ledges, shaving tails, burns or cracks.

All pipes shall have outdoor storage stability of at least 5 years and there shall not be any deterioration in pipes due to prolonged exposure to Solar Radiation and Weathering.

HDPE Pipes may remain in contact with certain chemicals in hydro-test water like Biocides/Oxygen Scavengers etc. Seller shall confirm that due to addition of such chemicals, HDPE Pipe shall not have any impact /deterioration in its mechanical or physical properties.

Seller shall submit Qualified Joining Procedures for Butt & Electro-fusion Welding. These joining procedures shall include parameters such as Material Grade, Pipe Size, Wall Thickness, Welding Temperature, Holding Pressure etc.

4.4 FINAL DOCUMENTATION

Seller shall submit comprehensive Manufacturer Data Records (MDR) for all material in accordance with the SDRS. MDR shall include all test reports. Prior to submission, MDR index shall be submitted for review and approval by Buyer. These Data books shall include, but shall not be limited, to the following:

All engineering deliverable marked as “Certified Final” or “As Built” whichever is applicable.

Inspection and Test procedures.

All Inspection reports and test certificates.

Material test reports

Catalogue of all components.

Installation / Erection instruction manual.

Inspection and Test Plan (ITP).



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TPIA Release note.

Buyer’s Release for shipment.

Seller shall provide two sets of soft copies on DVD’s and four sets of hard copies of all above documents including software, Manufacturer Data Records and Manuals.

5.0 BID DOCUMENTATION

Seller shall submit the following details as a minimum along with the bid:

1. List of Special tools, as may be required. 2. Seller’s organization chart for the project. 3. ASTM/ ISO Certificate. 4. ITP for similar project executed earlier by Seller. 5. Quality & HSE documents. 6. Detailed Schedule indicating key milestones, with realistic activity duration &

logical sequence and proper interfaces and highlighting the critical path. Schedule to include commissioning and performance test.

7. Reports of Previous Projects with similar magnitude & complexity to establish Seller’s capability / expertise:

8. Descriptive brochures and catalogue / manuals, as appropriate. 9. Guaranteed Performance Parameters. 10. Documentation giving guidelines/procedures on safe storage & handling of

HDPE Pipes. The Procedures shall provide minimum information on stacking height, precautions for storing & handling pipes in open yards as the pipes will be stored in the yard for longer duration before put to use.



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B SCOPE OF SUPPLY FOR HDPE FITTINGS

This Specification defines the minimum technical requirements for manufacturing, inspection, testing and supply of HDPE fittings for North Karanpura (Ranchi) CBM field development project.

1. 0 Type of Fittings:

The following types of fittings are covered by this specification:

Equal and Reducing Tees

Standard Elbows (1.5D)

3D Bends for Piggable lines (with varying angles as stated in MTO)

Concentric Reducers

HDPE -stainless Steel Transition Fittings

Stub Ends

End Caps

Electro Fusion Couplers

2. 0 Codes, Standards and Specifications

The applicable sections of the latest editions of the codes, standards and specifications listed below (including revisions, addenda, and other documents incorporated by reference) shall be considered part of this specification:

The Seller shall obtain his own copies of the Industry and Government Standards referenced herein:

The latest edition of the following listed standards shall be considered part of this Specification:

ASME B31.4 Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids

ASME B31.8 Gas Transmission and Distribution Piping Systems

ASME B31.3 Process Piping

ASTM D3350 Standard Specification for Polyethylene Plastics Pipe and Fittings material



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ASTM D2513 Standard Specification for Polyethylene(PE) Gas Pressure, Gas Pressure Pipe, Tubing and Fittings

ASTM F2619 Standard Specification for High- Density Polyethylene (PE),Line Pipe

ASTM D3261 Butt Heat Fusion PE Plastic Fittings for Polyethylene (PE) plastic pipe and tubing

ASTM D2122 Standard Test method for Determining Dimension of Thermoplastic Pipe and Fittings

ASTM D1598 Standard Test method for Time to Failure of Plastic Pipe under Constant Internal Pressure

ASTM D1599 Standard Test method for Resistance to Short Time Hydraulic Pressure of Plastic Pipe , Tubing and Fittings

ASTM F2206 Fabricated Fittings of Butt- Fused PE Plastic Pipe, Fittings

All other ASTM and ISO Standards referred in the above standards and specified in the MTO. In addition, the supply shall comply with Local Government Rules and Regulation, relevant to Health, Safety and Environment.

3. Design Data

3.1 Gas Service(underground only)

Service: Process Gas (wet)

Design Standard : ASME B31.8

MOC: HDPE PE4710

Design Temperature: 0- 45 deg C

Design Pressure: 4.93 Bar g

Size Range: IPS 2”- 10”

3.2 Water Service (underground only)

Service: Produced Water

Design standard: ASME B31.4

MOC: HDPE PE4710

Design Temperature: 0- 50 deg C

Design Pressure: 9.20 bar G



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Size Range: 2” - 10”

4.0 TECHNICAL REQUIREMENTS:

4.1 GENERAL REQUIREMENTS

4.1.1 All materials shall be supplied strictly in accordance with the applicable technical requirements in these specifications and with the other applicable referenced standards.

4.1.2 Material shall be new (not older than 2 years), unused, without any repairs, of first quality, conforming to relevant applicable specifications.

4.1.3 Inside Diameter of the fittings at weld ends shall match with SDR 17 pipes of same IPS size

4.1.4 All fittings shall have the pressure rating equivalent to the SDR 17 pipes of same grade.

4.1.5 The Seller shall source HDPE Resin material from reputed manufacturer in India, Middle East, Europe and USA. Resin shall be procured from reputed manufacturers such as Borough Pte LTD, Lyondell Basell, Ineous

In case, resin material is sourced from any other manufacturer then the following information and Resin Test results shall be furnished as per Cell Classification CC4455 76C of ASTM D3350 for the Buyer review and approval

1) MRS/HDB validation 6) Slow Crack Growth Resistance

2) Density 7) Thermal Stability

3) Melt Index 8) Elongation at Break

4) Flexural Modulus 9) Brittleness Temperature

5) Tensile Strength at yield 10) Carbon Black

The Seller shall procure Resin Material only after the Buyer Approval.

5.1 SPECIFIC REQUIREMENTS OF FITTINGS FOR GAS SERVICE

Unless specified differently in the requisition, the following requirements are applicable for each listed component type in Gas Service.

Grade: PE 4710

Cell classification PE 445576C, as defined in ASTM D3350

Dimensional as per ASTM D2513

End Condition: Butt Fusion end



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Validation of Resin material for “Minimum Required Strength” (MRS) as per ISO 9080/ISO 12162 or “Hydrostatic Design Basis “(HDB) as per ASTM D2837 shall be validated as per section 5.9 of ASTM D2513. Any substantial change in the manufacturing of the resin material shall warrant re validation of the process.

The Seller shall provide sectional drawings of all fittings for the Buyer review and approval prior to start of manufacture/supply of fittings.

5.2 SPECIFIC REQUIREMENTS FOR FITTINGS IN WATER SERVICE

Unless specified differently in the requisition, the following requirements are applicable for each listed components type in Water Service.

Grade PE 4710

Cell Classification PE 445576C, as defined in ASTM D3350

Dimensional as per ASTM D3261

End Condition : Butt Fusion End

The Seller shall provide sectional drawings of all fittings for the Buyer review and approval prior to start of manufacture/supply of fittings

6.0. TECHNICAL AND QUALITY REQUIREMENTS

6.1 Raw Material- Resin (Applicable for all type of Resins)

Sr. No Test Description Reference Standard

Acceptance Norms

Frequency Forms of Records

1 Density@ 23 deg C

ASTM D792 Table 1 of ASTM D3350

Each Batch Material test certificates /Lab Report

2 Melt Flow Rate (190 deg C, 21.6 kg)

ASTM 1238 4-20 gm/10 min Each Batch Material test certificates /Lab Report

3 Thermal Stability ASTM D3350 Min. 220 deg C Each Batch Material test certificates /Lab Report

4 Flexural Modulus ASTM D790 758-1103 Mpa Per Resin Type

Material test certificates /Lab Report

5 Tensile Strength at Yield(50 mm/min)

ASTM D638 24-28 Mpa Per Resin Type




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6 Elongation at Break (50mm/min)

ASTM D638 >400% Per Resin Type


7 Slow Growth Crack Resistance

(Type Test)

ASTM F1473 (PENT)

Min 500 hrs Per Resin Type


8 MRS Validation for PE pipe at 20 deg

C (Type Test)

ISO 9080/ISO 12162

10 MPa Per Resin Type


9 Resistance to Rapid Crack

Prpagation ( Type Test)

ISO 13477 58 psi (> 4bar @ 0 deg C)

Per Resin Type


10 Brittleness Temperature (Type Test)

ASTM D746 <-60 deg C Per Resin Type


Note:

1. For Sr. No 1-3, Seller shall perform the tests, for each of the resin batch from which the fittings will be manufactured against this specific supply.

2. For Sr No. - 4-10 Seller shall provide actual tests reports performed by resin manufacturer for any batch of the same grade.

6.2 HDPE MOULDED FITTINGS

Sr. No Test Description

Reference Standard

Acceptance Norms Frequency Forms of Records

1 Workmanship

ASTM D2513

Fittings shall be homogeneous throughout and free from visible cracks, holes,foreign infusion,blister dents and other injurious effects

1 sample/hr/size

Inspection Report

2 Outside Diameter

ASTM D2513 & ASTM 2122

Table 2 of D2513 1 sample/hr/size (Table A1.2) of D2513

Inspection Report

Wall Thickness

ASTM F2513 & ASTM2122

Table 4 of D2513 1 sample/hr/size (Table A1.2) of D2513



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3 Toe On ASTM D2513 and ASTM D2122

<= 1.5% 3 Samples/day/size Inspection Report

Ovality (Out of Roundness)

ASTM D2513 and ASTM D2122

<= 2% 1 sample/day/size

Length ASTM D2513 & ASTM D2122

As agreed between manufacturer and customer

10 samples/day/size

4 Hydrostatic Burst Report

ASTM D2513

Method B of ASTM D1599. Internal pressure shall be 580 psig

3 fittings

Test

Report

5 Chemical

Resistance

Test

ASTM

D2513

ASTM D638

Change in weight

should not be more

than0 .5% or 1%

depending on the

chemical and tensile

strength not more

than +/- 12%

5 samples dumbbell

punched from

plaque for a

chemical

independently (once

annually thereafter)

Test Report

6 Melt Flow

Rate Material

ASTM

D1238

4-20 g/10 min 1 sample per size Test Report

7 A) %

Elongation at

break

ASTM D638 >400% 1 sample per size Test

Report

B) Thermal

Stability

ASTM

D3350

Min. Induction

temp>220 deg C

1 sample per size Test

Report

8 Elevated

Temperature

sustained

pressure test

ASTM

D2513

Annexure

A1 and

Table A1.1

& ASTM

No sample failure

allowed

3 fittings Test

Report



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D1598

9 Carbon

Black

Content Test

ASTM D4218

ASTM

D2513 4.6

2 to 3% 1 Sample/Size Test

Report

10 Marking As per

buyer

approved

buying

procedure

Should be legible,

visible and

permanent

Each fitting Test

Report

6.3 HDPE Pipe (Applicable for Fabricated and Transition Fitting)

Sr. No Test

Description

Reference

Standard

Acceptance Norms Frequency Forms of

Records

1 Workmanshi

p

ASTM

D2513

Fittings shall be

homogeneous

throughout and free

from visible cracks,

holes,

foreign infusion,

blister dents and

other injurious

effects

1 sample/hr/size

Inspection

Report

2 Outside

Diameter

ASTM

D2513 &

ASTM 2122

Table 2 of D2513 1

sample/hr/size(Tabl

e A1.2) of D2513

Inspection

Report

Wall

Thickness

ASTM

F2513 &

ASTM2122

Table 4 of D2513 1

sample/hr/size(Tabl

e A1.2) of D2513

3 Toe On ASTM

D2513 and

ASTM

<= 1.5% 3 Samples/day/size



_________________________________________________________________________________

21

D2122

Inspection

Report

Ovality(Out

of

Roundness)

ASTM

D2513 and

ASTM

D2122

<= 2% 1 sample/day/size

Length ASTM

D2513

& ASTM

D2122

As agreed between

manufacturer and

customer

10

samples/day/size

4 Hydrostatic

Burst Report

ASTM

D2513

Method B of ASTM

D1599. Internal

pressure shall be

580 psig

3 fittings

Test

Report

5 Chemical

Resistance

Test

ASTM

D2513

ASTM D638

Change in weight

should not be more

than0.5% or 1%

depending on the

chemical and tensile

strength not more

than +/- 12%

5 samples dumbbell

punched from

plaque for a

chemical

independently

(once annually

thereafter)

Test

Report

6 Melt Flow

Rate Material

ASTM

D1238

4-20 g/10 min 1 sample per size Test

Report

7 C) %

Elongation at

break

ASTM D638 >400% 1 sample per size Test

Report

D) Thermal

Stability

ASTM

D3350

Min. Induction

temp>220 deg C

1 sample per size Test

Report

8 Elevated

Temperature

sustained

pressure test

ASTM

D2513

Annexure

A1 and

Table A1.1

No sample failure

allowed

3 fittings Test

Report



_________________________________________________________________________________

22

& ASTM

D1598

9 Carbon

Black

Content Test

ASTM D4218

ASTM

D2513 4.6

2 to 3% 1 Sample/Size Test

Report

6.4 Fabricated Fittings

6.4.1 All jointing for fabricated fittings shall be carried out by Butt Fusion process.

6.4.2 Inside Diameter (ID) of the fittings shall match with SDR 17 pipes of same size.

6.4.3 All fittings shall have pressure rating equivalent to the SDR 17 pipes of same grade

6.4.5 if higher thickness pipes are anticipated to meet the above requirement, it shall be

ensured that the Inside diameter at Butt Fusion ends shall match that of SDR 17 pipes

of specified IPS size.

6.4.6 As these fittings are meant for pig-gable pipeline application, the inside diameter of all

the fabricated fittings shall be explicitly stated in the bid.

6.4.7 The ends of the fittings shall be suitable for making butt fusion joints at site.

6.4.8 Bidder shall submit fusion procedure specification (FPS) and fusion procedures

qualification record (FPQR) for shop welding along bid in accordance with attachment

A of this specification.

6.4.9 Inspection and testing requirements for fabricated fittings.

Sr.

No

Test

Description

Reference

Standard


Records

1 Incoming Pipe

Inspection

Manufacturer

Internal

Standard

Pipe shall be

homogeneous

throughout and free


holes,

foreign infusion,

blister dents and

100% on

Receipt of

Pipe

Inspection

Report



_________________________________________________________________________________

23

other injurious effects

FPS,FPQR

and Welder

qualification

records

Attachments

a of PLS

1012

Attachments a of

PLS 1012

Qualification

Record

2 Visual

Inspection

ASTM D2513 Section 5.2 of ASTM

D2513

Each Fitting Inspection

Report

3 Short term

Pressurization

test

ASTM F 714,

ASTM F2206

CL 7.3 and

9.5

All the specimens

shall pass the test

1 fitting Test

Report

4 Elevated

Temperature

sustained

pressure test

ASTM D2513

Annexure A1

and Table

A1.1 and

ASTM D1598

No sample failure

allowed

1 fitting

Test

Report

5 Overall

Dimension(O

D, Tolerance,

Ovality,

Thickness)

Approved

GAD

As per

Approved GAD


Report

6 Marking As per Client

approved

marking

procedure

Should be legible,

visible and

permanent

Each fitting Test

Report

6.5 Transition Fittings

6.5.1 The transition shall meet the requirements of category 1 mechanical joint as per Cl

6.10 ASTM D2513

6.5.2 Pigging will occur in the HDPE lines using the soft foam bullet pigs in gas service,

Transition fittings shall provide smooth interior transition between the steel pipeline

and the PE pipeline



_________________________________________________________________________________

24

6.5.3 ID of the transition fitting shall match with connected pipes at both ends. Reference

shall be made to PLD- 0011/PLD -8012 for dimension details

6.5.4 The interior of the fitting should not contain sharp edges in which pig can get stuck

6.5.5 Bevel end preparation at steel end shall be as per ASME B31.8. HDPE ends shall

be suitable for Butt Fusion joints

6.5.6 The seller shall provide sectional drawings of proposed transition fitting design for

the Buyer’s review and approval

6.5.7 The joint between the HDPE portion and the steel portion shall be detailed in the

Seller drawings and submitted for the Buyer’s review and approval

6.5.8 Steel end of each transition transition fitting shall be provided with a pup piece of

minimum 300 mm long

6.5.9 The SS/CS long pipes used in the transition fitting shall be as per the following

specifications:

ASTM A312- TP for sizes up to 8”(seamless) - For SS Transition fittings

ASTM A106 Grade B for sizes up to 10 Inches for CS Transition fittings

6.5.10 Inspection and Testing requirements for Transition fittings

Sr.

No

Test

Description

Reference

Standard


Records

1 Incoming Pipe

Inspection

HDPE AND

CS/SS PIPE

Manufacturer

Internal

Standard

Pipe shall be

homogeneous

throughout and free


holes foreign infusion,

blister dents and other

injurious effects

100% on

Receipt of

Pipe

Inspection

Report

Dimension ASTM

D2513

Section 5.2 of ASTM

D2513


Report

2 Short term

Pressurization

test

ASTM F 714,

ASTM F2206

CL 7.3 and

9.5

All the specimens

shall pass the test

1 Fitting Test

Report



_________________________________________________________________________________

25

3 Elevated

Temperature

sustained

pressure test

ASTM

D2513

Annexure A1

and Table

A1.1 and

ASTM

D1598

No sample failure

allowed

1 Fitting Test

Report

4 Joint test

category (Pull

test)

6.10 of

ASTM

D2513 &

ASTM D638

All specimens shall

pass the test

Each size Test

Report

5 Overall

Dimension(OD,

Tolerance,

Ovality,

Thickness)

Approved

GAD

As per

Approved GAD


Report

6 Marking As per Client

approved

marking

procedure

Should be legible,

visible and permanent

Each fitting Test

Report

Note: Size & type pf the fittings for all the destructive tests (IN SEC 6.0) shall cover all

size ranges and mutually agreed by the Buyer and the Seller.

7.0 Marking

7.1 All fittings shall have durable and legible identification markings in accordance with the

applicable ASTM specification, and as specified herein as a minimum.

7.2 Marking shall be in English language and in SI units

The minimum information to be shown on fittings shall be as follows:

Size, e.g. IPS 4”

SDR Number

Manufacturer

Service : Gas/ Water, whichever is applicable



_________________________________________________________________________________

26

Cell classification or Material Designation Code

ASTM D2513/STM D3261, whichever is applicable

Color Coding

7.3 All fittings shall be marked on the body or hub. For transition fittings, markings shall be

made at both HDPE and SS sides.

7.4 Marking procedure shall be submitted for the Buyer review and approval as part of post

order documentation.

ATTACHMENT A- QULAIFICATION AND TESTING OF BUTT FUSION JOINTS

1.0 Procedure Qualification

To verify the quality of the fusion process and machine function, the Seller shall carryout

qualification test in accordance with ASME Sec. IX, clause no. QF- 200 using preliminary

Fusion Procedure Specification (FPS) as specified in QF- 480 of ASME Sec. IX.

Qualification/Testing shall be carried out in the presence of a TPIA.

The proposed pipe wall thickness ranges for procedure qualification in accordance with

QF202.2 shall be as follows.

SL.

No.

Procedure Qualification Test (Wall

Thickness)

Procedure Qualification

Range

01 10 mm 5mm to 20 mm (2” to 8”

OD)

Note: Pipe having wall thickness of 10 mm is required to qualify our project pipe wall

thickness range from 5 mm to 20 mm

1.1 Visual Inspection

Visual Inspection shall be carried out upon completion of the butt fusion. Allow the fusion

joint samples to cool to ambient temperature. The V groove between the beads should

not be deeper than half the bead height above the pipe.

The following guidelines for acceptable and unacceptable visual appearance for butt

fusion samples shall be considered applicable.

Acceptable visual appearance: Proper double roll -back bead with proper alignment.



_________________________________________________________________________________

27

Unacceptable visual appearance: Incomplete face- off

Unacceptable visual appearance: Improper pipe alignment with high - low

Unacceptable visual appearance: Improper alignment in fusion machine- miltered joint

Unacceptable visual appearance: Contamination of joint

1.2 Reverse Bend testing of fused joints

To ensure the quality of fusion joint, the bend back testing of fused joints shall be carried

out as detailed below:

Cut the joints into straps as given in Fig: QF- 463 of ASME Sec. IX. Bend test shall be in

accordance with QF- 143 of ASME Sec. IX

Minimum four straps shall be cut at locations 12,3,6 and 9’o clock positions for two joints.

The cut sample shall be visually inspected for bond continuity and strength. The cut

sample shall not have any indication of voids, gaps, misalignment of surfaces, In case

any of the defects present the new test sample shall be prepared and tested again.

Bend each sample at the fusion joint with the inside of the pipe facing out until the ends

touch. Upon bending, sample shall be free of cracks and separations within the fusion

joint locations. If failure occurs at the weld in any of the samples then the fusion

procedure shall be reviewed and corrected and retest shall be carried out.

1.3 In case of any test sample fails to meet the applicable acceptance criteria the retest shall

be carried out as below. The causes for the test failure shall be analyzed and accordingly

the relevant parameters shall be changed.

After correction, another two sample fusion joints should be made per the new procedure

and retested.

Upon successful completion of testing, the Seller shall make the proper records with the

parameter monitored/applied during procedure qualification. The seller shall propose the

suitable format to accommodate all the necessary information and the essential variables

as applicable for the consultant /company review and approval. For each qualification,

the records shall be maintained and made available for verification.

All procedure qualification shall be certified by a TPIA.

1.4 Submission of Fusion Procedure Specification (FPS) and QPR



_________________________________________________________________________________

28

Upon successful completion of all testing, the Seller shall submit the Fusion Procedure

Specification along with supported Fusion PQR for review and approval of the Company

/Consultant. The formats shall be in accordance with QF-480 of ASME Sec. IX.

2.0 Qualification of Butt Operators

Each butt operator shall be qualified in accordance with clause no. QF - 300 of ASME

Sec. IX, Code.

The pipe diameter range for performance qualification shall be as per Table QF- 452.3 of

ASME Sec. IX. Fusion joining machine operator shall be re-qualified when there is

change in butt fusion joining machine/equipment manufacturer. Upon successful

qualification of butt fusion procedure, the same parameters shall be applied and

subsequently all operators to be qualified.

Visual and reverse bend test shall be carried on test samples for operator qualification in

accordance with Clause no. QF- 321 of ASME Sec IX Code.

A fusion machine operator who fails one or more tests prescribed in QF -302 of ASME

Sec. IX, as applicable shall be retested in accordance with Clause no. QF- 321 of ASME

Sec IX Code.

The Seller shall maintain the unique number for each operator and operator qualification

record shall be maintained for verification.

The records of fusion machine operator performance qualification tests shall include the

qualified ranges of essential performance variables. , the type of tests performed, and

the test results for each of fusion machine operator. Suggested forms for these records

in Form QF- 484 of ASME Sec IX Code.

The Seller shall ensure that each operator shall have adequate training and proper

guidance as required prior to production joints.



_________________________________________________________________________________

29

C SCOPE OF SUPPLY FOR HDPE PLB DUCTS

The Material Requisition and attachments form an integral part of this RFQ and will form

the technical basis for any resultant Purchase Order.

I SCOPE OF WORK

The WORK defined and described hereunder is not exhaustive. Seller’s scope includes

but not limited to the following.

1.0 Supply of new Goods should be as detailed in “Technical Specifications” &

Form A “Price Break Down Structure”.

2.0 Seller shall be responsible for complete design, manufacturing and supply of

Goods detailed in “Technical Specifications” and Form A – “Price Break Down

Structure”.

II SCOPE OF SUPPLY & TECHNICAL SPECIFICATIONS:

1.0 General: This section defines minimum requirements for manufacturing/ supply of

GOODS. All materials supplied under this specification shall be manufactured in

compliance to the latest edition of ASTM/IS/TEC standard specifications and other

requirements of BUYER as specified hereunder:

2.0 Scope of Supply



_________________________________________________________________________________

30

Bidder’s scope includes manufacturing and supply of the following:

HDPE Permanently Lubricated Duct (PLB) DUCT for Optical Fibre Cable Insertion as

specified in Form A – “Price Break Down Structure” and Annexure B - Technical

Specifications

2.1 Inspection

Prior to supply Seller shall get the Goods to be supplied under this Purchase Order

inspected by PEPL representative or PEPL authorized agency at Seller’s premise.

Seller shall submit to Buyer inspection report issued by PEPL representative or PEPL

authorized agency prior to supply. Seller shall notify Buyer at least 4 days prior to the

proposed inspection date, to facilitate PEPL to depute its representative.

The above inspection shall not relieve the Seller of his responsibility to supply Goods

as per ASTM/IS/TEC specifications. Seller shall replace at its cost all Goods, which

Buyer finds defective or not in conformance with the ASTM/IS/TEC Standards.

2.2 Testing

All Goods supplied against the order shall be tested as per ASTM/IS/TEC

specifications. Seller shall furnish a certificate of compliance that the Goods have

been manufactured, sampled, tested and inspected in accordance with the

ASTM/IS/TEC specification.

2.3 Marking

On each of the Goods shall be permanently marked by the manufacturer with the

following information, wherever applicable:

Manufacturer’s Name: Project Name: CBM Gas Project Name of the Duct with Diameter size: Date of Manufacture: Sequential Length marking at every meter:

2.4 Reports

Seller shall furnish to Buyer at the time of dispatch but not limited to the following

reports for the Goods

a) Certificate of compliance from Seller certifying that the Goods are manufactured

in full conformance with applicable Standards

b) Relevant test certificates for the tests carried out as per applicable standards.

c) TPIA Release Note if Available



_________________________________________________________________________________

31

2.5 Packing

Bundling and shipping of Goods shall be as per standard industry practice.

Goods shall be delivered at Buyer’s designated base at PEPL warehouses,

North Karanpura,Ranchi.

Packing of Goods shall withstand rough handling during transportation, loading

and unloading.

2.6 List of Document to be submitted with bid

Bidder should submit documents including but not limited to followings along with bid:

2.6.1 List of companies to whom Seller has supplied Goods.

2.6.2 Letter of satisfaction from the companies to whom Seller has supplied the

Goods.

2.6.3 Performance report for Goods offered.

2.6.4 Documents describing supply /manufacturing experience of bidder.

2.6.5 Information brochure Giving technical information of Goods.

2.6.6 A copy of Quality Assurance/ Quality Control/ Procedures manual.

Technical Requirements:

Sl. No.

Parameters Specified Limit Test Method

A Appearance

1 Visual Appearance

Smooth Inside & Outside surface, free of blisters, shrink, hole flaking scratches & roughness. Duct shall be smooth, clean and round. The end shall be clearly cut and shall be square with axis of duct.

2 Colour The Colour of the duct shall be bright orange/bright green/ bright yellow and uniform throughout.

The colour of the inner layer shall be white.

IS: 9938

3 Fading of colour There shall be no de colouration after ASTM D 1712



_________________________________________________________________________________

32

colour fading test

4 Lubricated Layer Must have inner lubricant layer clearly visible & white in colour. Uniform in thickness

5 Identification marking

Permanently marked with indelible ink

Manufacturers Name: Project Name: CBM Gas Project Name of the Duct with size: Date of Manufacture: Sequential Length marking at

every meter:

6 UV Stabilizer Test on Finished Product

Variation in Tensile Strength after ageing shall not be more than 20%

B Dimensions & Weight

1 Outside Diameter

40 mm + 0.4 mm

- 0.0 mm

It should be measured with the help of a Vernier caliper with a least count of 0.1 mm

2 Wall Thickness 3.5 mm +/- 0.20 mm It should be measured with the help of a Vernier caliper with a least count of 0.1 mm

3 Lubricated Layer Thickness

Should be min 10% of the wall thickness

It should be measured with the help of a travelling microscope with a least count of 0.1 mm

4 Standard Length 1000 meter +0.5%- 0.2%

5 Weight 380 gm/meter +/- 10 gm

6 Ovality Tests Difference of maximum and minimum diameter should be less than 1.3 mm

IS 4984

C Chemical Tests



_________________________________________________________________________________

33

1 Melt Flow Index

(@5kgs/190o C)

The change in the MFR caused by processing of raw material into the duct i.e. the difference between the measured value for the outer layer material from the duct and measured value for the raw material shall not be more than 30%. (The test shall be conducted by collecting raw material from the hopper during the extrusion and finished duct made from the same material)

IS 2530

2 Ash Content 0.3% max About one gram of the sample under test shall be taken and dried at 1050C for two hours in a platinum or glazed porcelain or silica or quartz crucible. The weight of the sample shall be noted. Subsequently, the sample with the crucible shall be transferred to a muffle furnace maintained at 600 + 500C and allowed to remain there for three hours. The ash content may be calculated as a percentage of the weight of the original shape

3 Environmental Stress

cracking resistance (ESCR)

No Cracking ESCR test shall be carried out as per ASTM D 1693 when tested with 10% Igepal (CO 630) solution at 50 + 10C. For type approval testing the duration of the test shall be 1000 hours. For acceptance testing the duration of the test shall be 48 hours.

4 Oxidation Induction

test

30 minutes (minimum) A short length of completed duct (approximately 30 cm) shall be sealed at the ends and placed in an oven at temperature of 68 + 10C for 8 hours. The sample shall then be allowed to cool at room temperature for at least 16

hours. The sample shall be clean and dry. The sample shall then be tested by

means of a Differential Scanning Calorimeter (DSC).



_________________________________________________________________________________

34

(ASTM D 3895)

D Physical Tests

1 Hardness 60 shore D (min) ASTM D2240

2 Density 0.940 to 0.958 g/cc at 270 C Test method as per IS 2530

3 Tensile strength at yield speed of testing 50 mm/minute

Min 20 N/mm2 ASTM F 2160 (using type IV specimens of ASTM D638)

4 Elongation at Break Speed of testing is 50 mm/min.

Min 500% ASTM F 2160 (using type IV specimens of ASTM D638)

5 Mandrel Test Mandrel should easily pass

between one end to other

A 150 mm long mandrel of diameter, 3 mm less than the internal diameter of the duct shall be passed through a 5 meter length of the duct, freely throughout the length, when the duct is bent to a radius of 5 meter

6 Coil Test No snaking or waving having zero coil set

The PLB HDPE duct shall unroll off the drums without snaking or waving having zero coil set. Thus the duct shall lay straight into the trench without recoiling.

For this purpose, when a minimum length of 50 meters duct taken from the coil and laid on the ground, it shall be straight without any bends or Kinks and without deformation, except 5 meters from each end

7 Hydraulic Characteristics

Minimum holding time to be

observed as indicated in Test

The duct shall be tested for internal pressure creep rupture test as per IS 4984. For this purpose, a sample length of 10



_________________________________________________________________________________

35

method times the outside diameter of the duct shall be taken. At the end of the test, the sample shall not show signs of localized swelling or leakage and shall not burst during the test duration.

The test showing failure within a distance equivalent to the length of end cap from the end shall be disregarded and the test repeated

8 Crush Resistance Test

Deflection not greater than 10% with load 50 kg and after recovery less than 2%.

Sample of duct of 150 mm + 2 mm in length shall be subjected to a dead load of not less than 50 Kg for one minute and shall be allowed to recover for 5 minutes. The deflection with load on and after recovery period shall not exceed 10% and 2% respectively.

9 Impact Strength There should be no crack/split when 10 kgs of load from 1.5 mtrs height after conditioning at 00 C for 1 hr duration

As per IS: 12235 (Part-9)

10 Internal Coefficient of Friction

Max 0.06 As per TEC/GR/TX/CDS-008/03/MAR-11

11 Oxidation Induction Time (OIT)

OIT > 30 mins One sample/lot

12 Coil Set The duct shall be straight without any bends or kinks and without any deformation except 5 mts from each end

One sample per lot

E Tests on PLB HDPE DUCT Accessories

1 Coupler leakage

Test

The coupler jointing shall meet the air pressure test of 15 Kg/ cm2 for a minimum period of 2 hours

2 Pull Strength of

coupler

The pull strength of the coupler shall not be less than 320 kgf.

2 Duct samples, each 30 cms. long, are jointed with the help of the Coupler, under test. The free ends of the 2 ducts are fitted to



_________________________________________________________________________________

36

Abbreviations:

ASTM ---- American Society for Testing & Materials. CC ---- Cubic Centimeter. HDPE ---- High Density Polyethylene. PLB ---- Permanently Lubricated MFI ---- Melt Flow Index. MFR ---- Melt flow Rate IS----- Indian Standards TEC---- Telecommunication Engineering Centre (GOI)

the two suitable grips of a tensile testing machine. The jointing shall meet pulling force of 320 Kgf. The test may be conducted by loading the coupler joined by two pieces of duct for15 minutes using a dead load.

3 Air Tightness Test of End Plug

End Plug shall be tested with a pressure of 1 bar for 30 minutes. (Suitable length shall be taken)

4 Air Tightness Test of Cable Sealing Plug

Cable Sealing Plug shall be tested with a pressure of 1 bar for 30 minutes. (Suitable length shall be taken)