031-procedure for hydro and pneumatic testing.pdf

Pearl GTL Project

LINDE ENGINEERING

Contractor Project No: 5887 Shell Project No: HP-3000-QAT

Project Document Number: T- 4.250.908 Project Rev.: O Page 2 of 32

Purchase Order Number: 2MH127

N/A Tag/Item Number(s):

ASU Unit(s):

Z PCWBS:

QATAR SHELL GTL PROJECT (PEARL) C2 AIR SEPARATION UNITS CONSTRUCTION

C O 04.12.2007 Issued for Company comments BR AU/MC ZG ICC

B 24.11.2007 Issued for Review BR AU/MC ZG IFR

A 18.11.2007 Issued for Internal Review BR AU/MC ZG IIR

Approved By

GAMA Project Rev Rev. Date Description

Prepared By

Checked By Status

No. No. ORIGINATOR

Document Title:

LINDEGINEERING AG

PROCEDURE FOR HYDRO AND PNEUMATIC TESTING

Document No.

GAM PRO QAC GTL 031 C LOC470

Contractor

Gama Qatar Co. W. L. L. Org.

Code Doc. Type

Disc. Code

Geogr. Area

Seq. No

Rev. No Vendor Code

Project Document Number: T-4.250.908 Rev No: O

Doc. Title : PROCEDURE FOR HYDRO AND PNEUMATIC TESTING

Doc no : GAM-PRO-QAC-GTL-031 REV-C Date 04.12.07

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TABLE OF CONTENTS

1. SCOPE ______________________________________________________________________________ 6 2. PURPOSE ___________________________________________________________________________ 6 3. HSSE _______________________________________________________________________________ 6 4. REFERENCE ________________________________________________________________________ 6 5. DEFINITIONS _______________________________________________________________________ 7 6. RESPONSIBILITIES __________________________________________________________________ 8

6.1. Site Manager _____________________________________________________________________________8 6.2. Construction Manager _____________________________________________________________________8 6.3. QA/QC Manager__________________________________________________________________________8 6.4. Welding Inspectors________________________________________________________________________8 6.5. QC Inspectors ____________________________________________________________________________8 6.6. Field Chief Engineer_______________________________________________________________________9 6.7. HSE Manager ____________________________________________________________________________9 6.8. Piping Superintendent _____________________________________________________________________9 6.9. Testing Supervisor ________________________________________________________________________9

7. EXCLUSIONS ________________________________________________________________________ 9 8. TEST PACK PREPARATION __________________________________________________________ 10 9. TEST PACK PROCESSING ____________________________________________________________ 11 10. QA/QC CLEARANCE _______________________________________________________________ 12 11. HYDROSTATIC TESTING __________________________________________________________ 13

11.1. Test Medium __________________________________________________________________________13 11.2. Test Pressure__________________________________________________________________________13 11.3. Preparation for testing__________________________________________________________________14 11.4. Test Pressure Gauges and recorders ______________________________________________________15 11.5. Testing witness ________________________________________________________________________15

12. SERVICE TESTING ________________________________________________________________ 16 13. PNEUMATIC TESTING_____________________________________________________________ 16

13.1. General ______________________________________________________________________________16 13.2. Preparation of test Equipment ___________________________________________________________18 13.3. Filling System _________________________________________________________________________19 13.4. Initial Pressurization and Leak Test ______________________________________________________20 13.5. Incremental Pressure Increase ___________________________________________________________21



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13.6. Equalization and Inspection _____________________________________________________________21 13.7. Hold Period ___________________________________________________________________________22 13.8. Leak Testing __________________________________________________________________________22 13.9. Test Evaluation________________________________________________________________________22 13.10. Completion ___________________________________________________________________________23

14. SAFETY __________________________________________________________________________ 23 15. POST TEST ACTIVITIES ___________________________________________________________ 25 16. ENGINEERING MODIFICATIONS___________________________________________________ 26 17. FINAL INSPECTION AND SYSTEM TEST STATUS ____________________________________ 26 18. REPORTS AND RECORDS __________________________________________________________ 27 19. ATTACHMENTS___________________________________________________________________ 27



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1. SCOPE This procedure applies to the Hydostatic and pneumatic testing of complete piping system and their integral components to assure mechanical strength and tightness in conjunction with relevant process engineering flow schemes and Piping drawings for C2 ASU PEARL GTL PROJECT by Gama Qatar.

2. PURPOSE The main purpose of this procedure is to define and describe the minimum requirements and responsibilities associated with the pressure testing of piping and integrated components. In addition, the applicable codes and/or standards shall be fully applied to all the testing activities. The main objective of this document is to ensure that; All activities are carried out in accordance with approved procedures, specifications and

drawings; All tests, measurements and inspections required by this procedure and/or applicable project

specifications are performed; Special working and control processes used if required have been previously approved; Qualified personnel are deployed for carrying out testing activities;

3. HSSE All works shall be in compliance with the State of Qatar laws and regulations, Ras Laffan Industrial City and International standards, codes, LINDE ENGINEERING AG and QSGTL and/or its PMC requirements and instructions. In addition all employees and GAMA subcontractor employees on site will have through LINDE ENGINEERING AG Site Safety Induction and GAMA Qatar Safety induction for site safety, health, environmental and security prior to work activities. Other training courses will be attended as required by LINDE ENGINEERING AG or QSGTL and/or its PMC as required.

4. REFERENCE ASME B 31.3 Process Piping ASME B 16.5 Pipe Flanges and Flanged Fittings ASME B 16.34 Valves Flanged, Threaded and Welding Ends DEP 31.38.01.11 Piping General Requirements and its Amendment T-13.376.815 DEP 31.38.01.12 Piping Classes Refining and Chemicals DEP 31.38.01.31 Shop and Field Fabrication of Steel Piping



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DEP 30.10.60.18 Welding of Metals (Amendments/supplements to API RP 582) DEP 61.38.10.10 Shop and Field Fabrication of Orifice Meter Run DEP 31.40.40.38 Hydrostatic testing of new Pipe line DEP 31.38.01.11 Piping General Requirements T-4.234.542 Project Quality Plan T-4-234-547 procedure for GRP piping T-4.250.915 Procedure for calibration T-4.376.808 GRP Pipe Lines and Piping systems T-4.096.700 Pneumatic and Hydrostatic Pressure Testing T-13.377.360 Flaw list for Flawless start up-initiative (FSI)

5. DEFINITIONS Company : QSGTL/or its PMC Contractor : LINDE ENGINEERING AG Sub Contractor : GAMA QATAR Contract : QSGTL Pearl Plant - C2 ASU Project QA/QC : Quality Assurance / Quality Control TPI : Third Party Inspection

ITP : Inspection and Test plan QA/QC : QA/QC Manager QCI : QC Inspector NDE : Non-Destructive Examination NCR : Non Conformance Report PTFE : Poly-tetra-fluoro-ethylene



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CTQ : Construction Technical Queries

WI : Welding Inspector

PWHT : Post Weld Heat Treatment

6. RESPONSIBILITIES

6.1. SITE MANAGER Site manager is responsible for the overall supervision of activities carried out during the project execution.

6.2. CONSTRUCTION MANAGER Construction Manager is responsible for all testing activities related to the piping and their integral components at field. He is also responsible for co-ordinating with Contractors sites supervisors as and when necessary.

6.3. QA/QC MANAGER

QA/QC is responsible for all quality matters related to the testing of piping system including the administration of non-conformance management in close co-operation with various related departments. He is also responsible for the clearance of test packages for testing and submission of completed test documents to Contractor for Mechanical completion. His responsibility also includes providing the notification to Contractor 24 hours in advance to witness the pressure testing and to verify the calibration of equipment and instruments to be used during the testing activities.

6.4. WELDING INSPECTORS

Welding Inspectors are responsible for the welding and NDE clearance of piping System on a test pack basis in co-ordination with Contractors Welding Inspectors.

6.5. QC INSPECTORS

QCI is responsible to verify that piping and piping system components are properly Installed and pre-test punch list is signed-off by Contractor and Company for Pressure testing. He is also responsible to perform tests and inspection in accordance With drawings, procedures, and other applicable specifications as mentioned in the Approved ITPs.



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6.6. FIELD CHIEF ENGINEER

Field Chief Engineer is responsible for the preparation of test packs in accordance with marked up Piping and Instrument diagram ( P& ID) prepared by Contractor, indicating the limits of each test packs. He is also responsible for obtaining the Contractors approval on prepared test packs and submission of approved test packs to the GAMA QA/QC along with approved pre-test punch list. He is also responsible for co-ordinating with Contractors engineering department for resolving technical queries if any related to the testing activities.

6.7. HSE MANAGER HSE Manager is responsible for all safety aspects arising during testing activities Including the preparation of permits if required, identification of exclusion zone, Communication facility at test location, First-aid facilities, Foreseeable hazards and Contingency actions, Means of escapes, etc.

6.8. PIPING SUPERINTENDENT

Piping Superintendent is responsible to verify that all piping and components are installed and the system is completed according with marked up Piping and Instrument Diagram (P& ID) and drawings included in the respective test packs.

He is responsible for the preparation of Punch list and submission of it to GAMA QA/QC for the verification of item completion.

6.9. TESTING SUPERVISOR

Testing supervisor is responsible to carry out the pressure testing in accordance with the approved test packs released for pressure testing. He is also responsible to verify the availability of materials required for pressure testing (test blind, bolts, gaskets, hoses, pumps, liquid soap, etc). His responsibility also includes to co-ordinate with Contractor test supervisor with respect to all test activities obtain his approval / agreement as and when required. No testing shall be carried out unless the NDE clearance has been obtained from the Contractor and Company.

7. EXCLUSIONS The following parts are excluded from the requirements of this procedure, unless specified otherwise by Contractor:



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Any package equipment previously tested by Manufacturer in accordance with applicable

Code and specifications, and certificates available. Piping open to the atmosphere, downstream of last block valve.

Instrument air sub-headers, outside the scope of Mechanical works and not shown on

piping isometrics. Instrument impulse lines between the block valve at the process or utility line and the

connected instrument. Equipment. Instrument components. (Analyser, flow instruments, flow meters, level gauges, level

instruments, pressure gauges, pressure instruments, pressure regulators, and pressure switches, relief valves etc shall be blind-off or be removed. Orifice plates shall be installed after pressure testing).

The bench testing of pressure relief valves.

Sewers (non pressure)

8. TEST PACK PREPARATION

GAMA shall prepare the test packs in accordance with marked up Piping and Instrument diagram (P&ID) prepared by Contractor, indicating the limits of each test packs. Each Test number shall be identified by Contractor in the marked up (P& ID)

A master (P&ID) showing the test limits and test pack number shall be maintained by

GAMA. All lines included in the test shall be listed on the Piping field test report.

The limits for each isometric shall be specified along with the painting and insulation requirements.

Each test pack shall contain the copies of relevant (P& ID) marked-up to show the test pack

number and limits of subject test pack. Latest available revision of each isometric describing the contents of the test shall be

included in the Test pack. As minimum, isometric shall be marked up to show the following: a) Highlight the test limits and line to be tested.



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b) Size (thickness) and location of all tests blinds (including those required at instrument connections).

c) Filling point, Vent and drain points. d) Location and range of pressure gauges to be used. Minimum 2 gauges required at both

End. Either one on the test manifold. e) Any control valves check valves, safety valves or other piping accessories requiring

removal, turning, or any other action shall be highlighted. f) Any special requirements when applicable. g) If required, location of temporary supports shall also be indicated on the test pack. h) A copy of the pipe support index and detail drawing for special supports such as springs

and cold supports. i) Flange Joint Tightening Record for any joint that requires hydraulic tensioning.

If any completed test requires re-testing, the original test pack number shall be maintained

and retest reference Rx (R1, R2,) shall be added. After preparation of the test pack but in advance of the test time, the original shall be

submitted to Contractor Site Quality Assurance Manager for review and approval.GAMA field chief engineer shall maintain the approved original test pack returned by Contractor and copy shall be issued to Test supervisor for further processing. Relevant CTQs, and/or FIR s relating to site modifications, which are not reflected on the isometrics, shall be included in the test packs.

9. TEST PACK PROCESSING

Piping superintendent in co-ordination with Test supervisor shall prepare the pre-test punch list for each test pack.

Piping superintendent shall prepare the pre-test punch list to verify that piping and piping

system component are installed to the extent necessary for pressure testing. Pre-test punch list shall not contain more than 20 items affecting the pressure test. The original punch list shall then be sent to GAMA field chief engineer through Test Supervisor

Field Engineer shall submit the THREE copies of test pack along with original pre-test Punch

list to the Contractors Senior Site Engineer at least three (3) days prior to the scheduled test date.

A combined consolidated pre-test punch list shall be prepared by the Contractor Piping

Engineer in co-ordination with Company Piping Engineer containing all incomplete piping and welding items. A copy of the updated pre-test punch list shall be handed over to test supervisor for action to clear the incomplete Items or shall be approved for testing if no items are identified.



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When all punch items with an exemption to the post test items, mentioned in the consolidated pre-test punch list are complete GAMA, Contractor and Company shall sign and date the bottom of pre-test punch list in the space provided.

GAMA field chief engineer who collect the approved pre-test punch list from test supervisor and

submitted to GAMA QA/QC along with original test pack for weld and NDE clearance.

10. QA/QC CLEARANCE During the preparation and finalisation of pre-test punch list by Contractor and Company,

GAMA QA/QC shall proceed with the Welding and NDE clearance of the field weld (Field weld summary) included in the test packs in co-ordination with Contractors Welding Inspector.

A visual check shall be carried out by GAMA W I in the field to ensure that all welding has been

correctly carried out as mentioned in the isometric drawings attached to the test pack. If any addition or deletion of weld joint found the same shall be incorporated in the respective as-built drawing.

Upon completion of the field verification of test pack after pre-test punch list approval, all NDE

including the PWHT and hardness test as applicable for each joints shall be verified and documented in the weld summary report.

GAMA QCI shall verify the material traceability report approved by Contractor during the

installation of piping and integrated components for each isometric drawing and shall be compiled to the original test pack for Contractor Welding Inspectors final verification during NDE review.

Any type of welding modification and repair that is performed after test pack has been cleared

by the welding and/or NDE inspectors shall be reported on a daily welding report by the foreman/supervisors who assigns the work. GAMA WI shall submit the inspection request to the Contractor inspector for the verification and final approval on the rectification work. The prior release shall be declared null and void and the test pack shall be updated with current drawings and documents.

All reinforcement pads for branch connections shall be tested in accordance with pneumatic

Testing as stated below. After the completion of all inspection and verification of documents, original test pack shall be

compiled with all records. The test pack shall then be signed by GAMA WI and will be offered to Contractor Welding Inspector for Welding and NDE clearance. If any outstanding item found during the inspection of Contractor welding inspector and/or Company the same shall be referred to GAMA for rectification otherwise test pack will signed off by Contractor and Company Welding Inspector to accord the Welding and NDE clearance.



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Contractor shall be notified 24 hours prior to the planned test time after the test pack is approved for testing.

11. HYDROSTATIC TESTING

11.1. TEST MEDIUM

Test medium shall be in accordance with piping isometric drawing and/or piping data sheet issued by the Contractor. Change of test medium shall not be permitted unless prior approval is obtained from Contractor by CTQ.

Hydrostatic Testing shall utilise water supplied by Contractor as the test medium. If there is a

possibility of damage or if the operating fluid or piping material would be adversely affected by water, this shall be referred to Contractor by CTQ for disposition.

Hydrostatic test pressure shall not be applied until the pipe and its contents are at

approximately the same temperature. Hydro tests shall not be conducted when the test liquid and/or metal temperature is below 100C.Water used for testing stainless steel shall contain less than 10ppm of chlorides with a pH value between 6 and 8.

Suitable wetting agent approved by Contractor shall be used to reduce surface tension. In the event that hydrostatic testing is required for systems that operate below 00C, all flanged

valves shall be removed prior to testing. Pipeline systems shall be filled from a low point as identified in the test pack isometric drawing.

During filling of the system, high points shall be vented to allow air/gas to escape.

11.2. TEST PRESSURE

The Hydrostatic test pressure for testing of Piping Systems shall be as indicated in the Piping Data Sheets and/or the Isometric Drawings. If test pressures are not shown on these documents, GAMA shall request the test pressure from Contractor by CTQ.

No equipment shall be included in the test, unless the prior approval of Contractor has been

obtained. In such cases, the test pressure shall not exceed allowable equipment test pressure.



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11.3. PREPARATION FOR TESTING

All joints in the piping system shall be accessible for visual inspection during tests and shall not be insulated, backfilled, or otherwise covered except the painting of welds which is permissible. The GAMA shall remove any protective tape or other protection applied to field welds prior to pressure testing. All other tape or similar materials applied by the GAMA to other components shall also be removed. The joints, which are previously pressure tested per ASME B31.3or equivalent, may be insulated or otherwise covered.

All vents and other connections, which can serve as vents, shall be opened during filling so that

all air is vented prior to applying test pressure to the system. All piping systems shall have hydrostatic testing vents at high points or other methods available in the Piping System to vent the system.

Temporary spades and blinds installed for testing purposes shall be in accordance with the as

specified in the isometric drawing. Temporary piping, jumpers, vent valves, drain valves, spacers, test spades and blinds shall be

readily identifiable by painting a bright fluorescent colour. All temporary items shall be numbered on the test diagrams and the post test punch list shall be used to verify removal after test completion.

Pressure tests shall not be conducted through control valves. All control valves and relief valves

may be removed or blinded off during pressure testing. Piping shall be tested prior to installation of in-line items such as rupture discs, displacement

and turbine meters, orifice plates, flow nozzles, level gauges, rota meter, strainers and similar. Instruments shall not be connected during piping pressure tests. If it is not practicable to perform testing prior to installation of in line items, it shall be the GAMA responsibility to remove or disconnect these items so that tests can be performed, and to re-install such items after testing. Sealing and plugging of systems after removal of inline items shall be performed by GAMA and shall reinstate system after testing.

Check valves shall be removed unless otherwise agreed by Contractor. Expansion bellows and/or spring supports shall be restrained or removed during testing. Each

case shall be referred to Contractor for direction. Care shall be taken to avoid overloading any part of the pipe support system or support

structures. Piping which is counterweight supported shall be temporarily blocked to sustain the weight of the test medium. Spring hangers which have been provided with stops for carrying the test load normally do not require additional temporary supports. If this is not the case, temporary support shall be provided before filling the system. Holding pins and spring stops shall not be removed from spring supports or hangers until testing is completed and permission to remove is obtained from Contractor.



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Piping designed for vapour or gas shall be provided with additional temporary supports to support the weight of the test liquid. The requirement of temporary supports shall be specified in the isometric drawing attached to the test pack.

Large adjacent lines shall not be tested simultaneously if the weight of the combined tests may

overload the structure or supports. Compressed Asbestos Fibre (CAF) gaskets shall not be used during testing. Aluminium bolts shall not be used during testing. Where components of the test system require

aluminium bolting materials, these shall be replaced by temporary bolts during all pressure testing. Temporary bolting material shall be identified with easily seen markings.

Equipment shall be isolated from pressure test. Test blinds shall be installed at the flanges of

equipment to provide positive isolation prior to filling the test circuit. All Necessary precautions shall be taken to ensure that nitrogen purges in vessels or equipment is maintained and to prevent ingress of moisture. Purges shall not be released without Contractor approval and shall be reinstated upon completion of required work, unless otherwise directed by Contractor.

11.4. TEST PRESSURE GAUGES AND RECORDERS

Minimum two pressure gauges having a full-scale range of 1.5 to 4 times of test pressure and an accuracy and sensitivity of 2 percent of full-scale reading shall be used. Test gauges shall have a minimum 100 mm face to a maximum of 150 mm.

All pressure gauges and chart recorders shall be calibrated within 30/31 days prior to testing.

Current calibration certificates shall be available for the Contractor/Company inspection upon request. The calibration shall be carried out in accordance with procedure and T-4.250.915 (Equipment and instrument calibration).Relief value shall be calibrated within 7 days prior to testing,

Gauge numbers shall be entered on Piping Field Test Reports. Gauges shall have a sticker

attached identifying the gauge number and calibration date. Each item of test equipment shall be permanently marked by GAMA with a unique serial number.

11.5. TESTING WITNESS

24 hours prior notification to the Contractor/Company shall be given for witnessing the test by an entry in the Inspection Log Book indicating that a piping system pressure test is to be performed. Witnessing of Piping Field Tests shall be Contractor/Company Hold point.

During the test, care must be exercised not to exceed test pressure specified on the isometric

drawing and/or piping Data Sheets. When conditions require that a pressure test be maintained



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for a period of time during which the testing medium in the system would be subject to thermal expansion, provision shall be made for relief of excess pressure.

Sealing materials shall not be used to correct leaks at joints with the exception of threaded

connections, where PTFE tape may be used. Valve glands shall not be tightened to the extent that the valve cannot be operated. If directed by Contractor valves shall be repacked.

Unless otherwise specified, test pressure shall be held for a minimum period of 30 minutes or a

duration, which will permit thorough inspection of the piping system. The same will be recorded. The pressure test shall be considered complete and accepted when all defective welds,

defective materials, flange leaks, valve gland leaks, or other such defects have been corrected and the piping has been retested, when required, to the satisfaction of Contractor. When required, retesting of lines after repair shall be done at original test pressure. All documentation and test pack information shall be complete and has been reviewed and signed by Contractor and the Company as required by this procedure and other project specifications.

Test pressure recorders for piping which require that pressure be held for a specified period of

time shall include any corrections of test pressure due to temperature variations between the start and finish of the test.

Records for piping in which a specified leakage rate is permitted shall include the quantity of

water added and the time at which the addition was made. All additional test records and authorised Contractor certifications shall be retained in the test Pack.

After the satisfactory witnessing of the pressure test GAMA, Contractor, and Company shall

sign the Original Piping Field Test Report

12. SERVICE TESTING Hydro testing of piping may be replaced by service test upon approval by Contractor and

Company. Such test packs shall be processed as normal for weld, NDE and pre-test punch list clearance. Upon completion of all items / clearance piping field test report shall be signed and original shall be over stamped.

13. PNEUMATIC TESTING

13.1. GENERAL

This section describes minimum required preparation of the piping system prior to pneumatic testing. GAMA shall be responsible for the safe conduct of all aspects of pneumatic testing.



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Prior to the Pneumatic testing, the test pack shall be prepared, compiled, approved and released for testing as specified in the section 8, 9 and 10 of this procedure.

All gaskets used in the test system shall be in accordance with the relevant Piping Material

Class. If any flange joints that have been fully tightened and then opened the gaskets shall be replaced and new gaskets shall be provided.

All flanged joints included in the test shall be securely taped with masking tape prior to test with

a pinhole on the top section of the flange tape for leak identification. All tape shall be completely removed after completion of the test.

All anchors, guides, supports and hangers shall be checked for correct installation prior to test.

In the event it is necessary to utilise temporary supports, these shall be reviewed by Contractor to ensure that the functionality of the support system is respected during testing. Temporary supports if provided shall be identified by painting yellow colour.

Blinds and spades at valves and test system extremities shall be checked for correct location

and thickness. Temporary test blinds shall have their handles painted a bright yellow colour for easy visible identification. Thickness of temporary spades and blinds installed for testing purposes shall be in accordance with the specified in the isometric drawing.

All valves in the test system shall be in the fully open position. Non-return valves shall be

checked to ensure that they allow free pressurising and depressurising of the system by either blocking open, removal (and replacement) of valve internals or removal of the valve from the test system. All components blocked or removed will be listed on a ISO to be included within each test pack.

Aluminium bolts shall not be used during testing. Where components of the test system require

aluminium-bolting materials, these shall be replaced by temporary bolts during all pressure testing. Temporary bolting material shall be identified with easily seen markings.

For test systems containing bellows, GAMA shall obtain Contractor approval of bellows

installation and intended test procedure prior to commencing test. GAMA shall verify flow direction of bellows prior to testing. Extreme care shall be taken during handling and erection of expansion bellows. Shipping rods shall only be removed with Contractor approval.

All instruments and/or tubing shall be disconnected from the piping system at the Block Valves

and capped or blinded, prior to testing with the valves in the open position.


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Pressure Gauge Vent P

PAD AIR SOURCE

13.2. PREPARATION OF TEST EQUIPMENT The test equipment shall comprise as a minimum the following:

Primary Compressor Booster Compressor Skid Comprising: Booster Compressor, Strainer, Pre-Filter, After Filter, Dryers, Check Valve, Flow Control Valve,

Main Relief Valve/Vent Pipe, Manifold with 2 x 1" and 1 x 3/4" connections and 1 x 2" connection for temporary fill pipe to test manifold.

Pressure Gauge Test Manifold Comprising: Solid welded pipe and fitting test manifold on a Portable Test Bench 2-Pressure Gauges, 1-Pressure Recorder, 1-Block valve, 1-Regulating Valve (Globe),

Gauge/Recorder isolation valves, Provision for fitting of relief valves, Vent pipes to suit relief valve, All necessary connecting spool pieces to suit various Relief Valves to be used on test manifold, 2" Relieving vent with valve, All necessary supporting frames, for manifold and vent pipes.

z Temporary Fill Pipeline from test manifold to test line inlet, z Fill Manifold (where required) for parallel test systems Comprising: Valves in Bypass Configuration (with lock), 2" Relieving Vent in each Fill System (with lock) z All necessary temporary connecting spool pieces to suit each fill configuration. z Relief Valves

The test equipment for small Volume Test shall comprise as a minimum the following

z Bottled Nitrogen with standard bottle valve regulator and pressure indicator z 2 Pressure Gauges z Provision for Relief Valve z Relieving Vent and Valve z Isolation Valves z Portable test Bench and Test Manifold as per large volume test rig z Pressure Hose, (Contractor approved) z All necessary connecting spools and fittings z Lighting



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All piping material considered Temporary for testing of Piping Systems

shall be of the same specified material rating as the process system flange rating being tested.

z Pressure Gauges shall have a range from zero to between 1.5 and 4 times the Test Pressure

(minimum nominal size 100mm). The two gauges shall be similar and shall be independently calibrated in accordance with the procedure T-4.250.915 (Equipment and instrument calibration).

Calibration tags/stickers shall be affixed to the gauges and relevant certification shall be available for review prior to testing. Both gauges shall be visible to the operator controlling the pressure. Gauges shall be re-calibrated on a weekly basis by Subcontractor and witnessed by Contractor.

z Pressure Recorders shall be able to record full pressure gauge range and to operate

continually without maintenance, ink filling, and paper changing or drive manipulation for 24 hours minimum.

z Pressure Recorders/Gauges and Temperature Gauges shall be located so as to be free from

vibration. For testing by compressor, the manifold is to be located for safety reasons immediately adjacent to the Booster Compressor Skid.

z Relief Valves are to be set at 1.0 barg above the Test pressure designated for the system

under test. Calibration shall be within 7 days. The relief valve shall be provided with adequate support for maximum relief pressure and maximum flow. Vent/blow down valves shall be likewise supported and vented above head height.

z The Regulator (Globe) Valve shall be able to control the flow into Test System within the

required pressurisation rates. z All piping on pressure gauge MANIFOLD shall be in accordance with Piping Classes

Specification DEP 31.38.01.12. All welds shall, where possible, be examined 100 percent by radiography and magnetic particle examination.

z Pressure Gauge Manifolds shall be hydrostatically tested after assembly to a test pressure of

1.20 times (max pressure barg) and then dried with Instrument Air or Nitrogen prior to use. z Prior to commencement of any test the GAMA shall confirm that relief valves are correctly set

and operating properly and that pressure gauges, pressure recorders and temperature gauges have been correctly set, calibrated and are operating properly. The records shall be made available to contractor for verification.

13.3. FILLING SYSTEM

The test fill line shall run from the pressure gauge manifold to the fill manifold and may be constructed from pipe or from suitable high pressure reinforced hose approved by Contractor.



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Only new hose shall be used. The test fill line shall be pressure tested after installation. Testing may be either hydrostatic or pneumatic. Test pressure shall be 1.1 times of testing pressure of the system to be tested. Where fill manifolds are utilised, they shall be pressure tested after manufacture as specified above.

Bypass valves are to be provided to isolate parallel systems and to allow bleeding from one

parallel system to another. The valving shall allow parallel lines to be tested (separately) without re-configuring any test piping/equipment. Vents are to be provided to prevent uncontrolled filling of a system not under test. For each proposed parallel Test System, the GAMA shall submit details of Valve and Vent arrangements for Contractor review. All valves shall have facilities to allow locking in both open and closed positions.

For systems which are to be compressor tested, prior to connecting filling system to test

system, the filling system is to be blown at the maximum rate of the compressor for a minimum of 30 seconds to clear any debris in line. The post dryer/filter is to be inspected before and after each test to check that no drying medium has been transported into the Manifold or filling System. Prior to testing of each test system a leak test of the completed filling system shall be performed with nitrogen or dry air at a pressure of 1.7 Barg.

Where Contractor agrees, bottled Nitrogen of welding grade purity may be used in place of

compressor equipment for small volume test systems. All precautions and recommendations of the supplier of the bottled gases shall be adhered to. The testing procedure to be used shall be as described for compressor tests; however, pressure recorders and temperature indicators are not mandatory. Blowing of the filling system shall be carried out by nitrogen blowing at an agreed pressure prior to leak testing.

13.4. INITIAL PRESSURIZATION AND LEAK TEST

Prior to the initial commencement of pressurisation pre-test checklist shall be signed off by the contractor testing supervisor and Gama testing supervisor.

After pre-test check list signing pressurisation shall be commenced and proceeded according

to the following sequence: z Pressure in system shall be increased gradually to an initial pressure of 10% and held for a

minimum of 10 minutes. After agreement with Contractor Testing Supervisor leak test shall be performed as follows:

a) Apply Contractor approved chloride free leak detection fluid (SNOOP or equivalent) and using a chemist wash bottle or other suitable means apply to all circumferential welds (not already tested) valve packing and pinholes in tape at pre-taped flanges.

b) Advise Contractor Testing Supervisor of any observed leaks c) If tightening is required to stop leaks, partially depressurise the system, isolate the immediate

work area from persons not necessary for the tightening operation. No one is permitted to stand in front of the gasket plane projection while tightening

d) If tightening does not stop leaks, depressurise system, replace gasket, properly tighten up flanges and retest.



T-4.250.908 Rev. O Page 21 of 32

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13.5. INCREMENTAL PRESSURE INCREASE

z Prior to continuance of test ALL personnel shall be cleared from exclusion zones and ensure ALL essential personnel at compressor/gauge station are protected by the provided barriers. A register shall be made available for signing in and off area for checking leaks and when compressor is in use.

z After agreement with Contractor Testing Supervisor pressure in system shall be increased

gradually in steps equal to or less than those shown in Table below until the Test Pressure is attained

Note: The minimum time taken to pressurise the system between increment hold points shall be 5

minutes for systems with the Test Pressure less than 30.0 Barg and 10 minutes for systems with Test Pressure greater than 30.0 Barg.

Low Pressure [PT < 5.00 Barg] High Pressure [PT > 5.00 Barg] STEP PRESSURE STEP PRESSURE 1 1.5 Barg 1 10% of PT2 90% of PT 2 25% of PT3 100% of PT 3 50% of PT4 PD 4 75% of PT 5 90% of PT 6 100% of PT 7 PD

PT = Test Pressure PD = Design Pressure Note: Number of steps may be reduced for small volume systems, subject to Contractor agreement.

z The pressure and temperatures shall be recorded during the complete testing period for

evaluation of line tightness.

13.6. EQUALIZATION AND INSPECTION

z At each pressure increment maintain the specific pressure for a minimum of 10 minutes to allow equalisation of piping strains and air pressure and to allow confirmation that specific pressure is being maintained. After this equalisation period, check expansion bellow alignment, anchor behaviour and seals, seats and gasket joints as required and tighten on adjust as necessary. If any abnormalities exist to the above listed items then depressurisation of the system shall take place until conditions are repaired. Contractor Testing Supervisor agreement shall be obtained prior to pressurisation to the next pressure increment.



T-4.250.908 Rev. O Page 22 of 32

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13.7. HOLD PERIOD

z When the Test Pressure has been attained it shall be held for ten (10) minutes to allow confirmation that the specific pressure is being maintained.

13.8. LEAK TESTING z After obtaining Companys / Contractor approval, accepting Test Pressure maintenance,

pressure shall be reduced gradually to the Design pressure. The time taken to depressurise to Design pressure shall not be less than 5 minutes for systems with Test Pressure less than 30.00 barg and not less than 10 minutes for systems greater than 30.00 Barg. On reaching Design Pressure, a leak test shall be performed as follows:

a) Apply Contractor approved chloride free leak detection fluid (SNOOP or

equivalent) and using a chemist wash bottle or other suitable means apply to all areas of interest.

b) Advise Testing Supervisor of any observed leaks c) If tightening is required to stop leaks, partially depressurise the system, isolate the

immediate work area from persons not necessary for the tightening operation. The Leak Test Shall be conducted by as per LINDE STD LS 133-02

13.9. TEST EVALUATION z Gasket/Sealed joints at flanges, blinds, valve bonnets, etc., found to be leaking during the test

shall be tightened by normal approved means at a time nominated by the GAMA Testing Supervisor (after agreement by Contractor Testing Supervisor). If normal approved tightening methods fail to stop any such leaks; the Company/Contractor shall be consulted for decision as to the course of action.

z Valve packing leaks shall be referred to Contractor Testing Supervisor who may require the

test to be aborted and the valve packing replaced. z If a leak is found in a welded joint or in the parent pipe the test shall be deemed to have

failed. The system shall be depressurised and the defect repaired. The repaired weld shall be subjected to the required visual inspection and non-destructive examinations. The repaired weld shall then be tested at the specified test pressure. Contractor Testing Supervisor may also consider a test to have failed if excessive flange leaks are detected.

z The test shall be deemed to be Acceptable provided the following conditions are met: a) The Test Pressure is maintained for a minimum of 10 minutes (refer section 13.7 of this

procedure). b) No leaks are detected during leak test c) GAMA, Contractor, and Company signatures are obtained signifying acceptance of the

pressure test.



T-4.250.908 Rev. O Page 23 of 32

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13.10. COMPLETION

z After obtaining Contractor/Companys signatures accepting the pressure test, the system shall be slowly depressurised. The system shall be sealed as far as practical to prevent ingress of moisture.

z Install relief valve to protect the system, especially bellows against pressure higher than 110

percent design pressure during the above test.

14. SAFETY

z The Gama Testing Supervisor and HSEM shall co-ordinate with the Contractor Test Supervisor with respect to all test activities, and obtain his approval/agreement when required.

z The HSEM or his designee shall at all times ensure that only essential personnel are allowed

into the designated Exclusion Zone specified in this procedure. Personnel to be inducted shall be identified prior to each test and their specific responsibility to areas shall be assigned. These areas to be walked prior to test commencing to familiarise personnel. Personnel to have helmet identification issued at test induction to ensure only essential personnel are within test areas. Contractor Testing Supervisor shall ensure that the Companys and all Subcontractors whose operations border the Test Systems barriers are fully aware of safety requirements.

z The HSEM shall assign one person full time to each road barrier. The person assigned shall

be in radio contact with HSEM and Gama Testing Supervisor z The HSEM shall ensure that adequate radios are available so that he can

immediately be made aware of any dangerous situation at the compressor station or along the test pipe system. The Gama Testing Supervisor and HSEM shall be in radio contact with the Contractor Testing Supervisor at all times during testing.

z Leak detection shall not be carried out during periods of rain. z The exclusion zone shall be positively identified by placing of clear warning sign at all

vehicular and pedestrian accesses. Provision for lighting shall be made to ensure the exclusion zone is positively identified during the hours of darkness, if required. It shall be ensured that non-essential personnel are clear of exclusion zones.

Minimum exclusion zone diameter (for Pneumatic testing only), placing the pressure containing components at the center point, shall be as follows:



T-4.250.908 Rev. O Page 24 of 32

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TEST PRESSURE (Barg) EXCLUSION ZONE (m) FROM TO 1.51 5.00 15 Note 2 5.01 10.00 30 Note 2 10.01 14.00 40 Note 2 14.01 18.00 50 18.01 22.00 60 22.01 26.00 70 26.01 30.00 80 30.01 36.00 90 36.01 40.00 100 40.01 46.00 110 46.01 52.00 120 52.01 58.00 130 58.01 64.00 140 64.01 69.00 150 69.01 75.00 160 75.01 80.00 170 80.1 & over NOT RECOMMENDED

Note 1: No exclusion zone required for test pressures up to 1.5 barg. Note 2: For small volume systems, subject to Contractor agreement, the requirement for An exclusion zone may be waived.

The exclusion zone distances specified above may be reduced provided effective shielding is applied and Contractor approves Gama proposal.

During pressurisation/depressurisation Gama Testing Supervisor shall remain at the compressor station. ALL personnel, with the exception of Contractor Testing Supervisor, Gama Testing Supervisor and compressor operator, shall remain outside the exclusion zone distances given above. Exceptions to this are as follows:

a) At the 1.5 barg initial leak detection test b) At the Design Pressure main leak detection test

Only ESSENTIAL personnel as directed by the Gama Supervisor will be allowed to enter the

exclusion zone for a), b) above to perform leak tests, inspect the pipe system and/or tighten leaking joints and only after the required hold times have elapsed.

The Gama Testing Supervisor shall obtain Contractor Testing Supervisor approval prior to

authorising ANY personnel to enter the exclusion zone. A register of all persons entering the exclusion zone shall be maintained at field office outside of test area by a designated person of HSEM. All persons shall sign off such register after having completed their activities in the exclusion zone to ensure that all persons have left the zone prior to proceeding with the next test stage.



T-4.250.908 Rev. O Page 25 of 32

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The compressors and pressure gauge manifold shall be located not less than 30 meters from the test system pipeline. They shall be located in a safe place so that they and the operators and test supervisors are at all times protected either by natural obstacles or temporary barricades e.g. concrete blocks etc.

If a leak is detected at any stage during the test the Gama Testing Supervisor shall consult

with the Contractor Testing Supervisor regarding the need/requirement to depressurise partially or fully prior to further examination, tightening or repair.

Where Fill Manifolds are utilised the operation of the valves situated at the Fill Manifold shall

be controlled by a locking system, in order to protect the Test system from being isolated from the safety relief valve and/or from uncontrolled filling. The Testing Supervisor is to be solely responsible for the operation of these valves and the keys of this locking system to prevent uncontrolled operation.

The HSEM shall arrange Necessary fire extinguishers at Pneumatic Test Compressor Fuel tank locations as a precaution of fire safety. When necessary, lighting shall be provided for inspection during testing a) Area Lighting - flood lights b) Weld Inspection - hand-held torches. Lighting may also be provided at the Compressor Station/Pressure Gauge manifold area if required.

15. POST TEST ACTIVITIES After testing of the piping is witnessed and report is signed-off, all lines and equipment shall

be completely drained of the test fluid. Piping systems vents shall be opened while draining to avoid vacuum. Special attention shall be given to points where water may be trapped, such as in valve bodies or low points piping.

All temporary test blinds shall be removed unless otherwise directed by Contractor and all

operation blinds returned to proper position unless otherwise required for commissioning activities and identified to be left in place on the Post Test Punch List. Valves, expansion joints and short pieces of piping, which have been removed, shall be reinstalled with specified gaskets. Wherever applicable protective tape shall be reapplied to field welded stainless steel joints only.

Lines down stream of check valves shall be inspected to insure complete drainage. Check

valve internals removed for testing shall be reinstalled unless required to be left out to facilitate commissioning. Test Blinds shall be removed at pumps and dust blinds shall be reinstalled unless stated otherwise on the Post Test Punch List.



T-4.250.908 Rev. O Page 26 of 32

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After lines have been depressurised and drained, temporary pipe supports shall be removed. Spring hangers provided with stops to carry the test load should have these stops removed when so directed by Contractor on the Post Test Punch List. Lines shall be closed to prevent entry of foreign materials.

Flanged joints at which test blinds have been removed do not require retesting. Special

length bolting used to accommodate test blind thickness and compressed asbestos fibre gaskets shall be removed and replaced with line class bolts and gaskets.

Instruments, which were removed or isolated, for test shall be reinstalled and isolations

removed. Lines operating at temperatures below 00C, which have been hydrostatically tested shall be

completely dried and purged when required by Contractor Commissioning. After the pipe systems reinstatement, Gama shall submit a copy of the signed and completed

Punch List for verification. Contractor/Company shall confirm completion and initial all completed items and returns the copy of the verified punch list to Gama.

16. ENGINEERING MODIFICATIONS All piping modifications that involve welding to piping that has been pressure tested shall be

documented that part of the system including the modification shall be retested. Engineering modifications are identified as changes in type or location of piping components, material type, pipe sizes and schedules; location of inline instruments and orifice runs; size, type or location of engineered supports, or relocation of standard support by more than 200 mm, expansion loops, safety and relief valves, spectacle/maintenance blinds, etc.

Contractor shall approve any change to drawings Issued for Construction. The approval

shall be in the form of a Construction / Commissioning Technical Query (CTQ), Non-conformance Report, and field revision to the drawing or a Contractor issued/approved field sketch.

A copy of the modification approval document shall be included in the test pack prepared for

the re-test. A copy of the CTQ, NCR, field revised isometric or field sketch and quality control documentation/acceptance shall be attached prior to commencement of test. The test packs shall be reviewed and approved by the Contractor before pressure testing.

17. FINAL INSPECTION AND SYSTEM TEST STATUS

When Gama has completed all testing of a full piping system, Contractor shall inspect the completed piping system and shall notify the Gama of any deficiencies or outstanding work, which must be completed prior to acceptance of the system. If there are no deficiencies, or if all deficiencies have been corrected, the piping system shall be accepted by Contractor.



T-4.250.908 Rev. O Page 27 of 32

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The Gama shall maintain a master copy of all P&ID, which have been colour coded to

indicate piping systems, and isometrics, which have been accepted by Contractor.

18. REPORTS AND RECORDS

As a minimum, Gama shall maintain records of all pressure tests, Welding and NDE details of all joints records of all welding operations including welder stamp numbers, weld joint numbers, records of post weld heat treatment and hardness tests, pressure gauge calibration sheets, and all required certification records. Material traceability, NDT and Alloy Verification shall be recorded in accordance with the respective quality assurance procedures approved by Contractor

After satisfactory completion of pressure test, Gama shall transmit the signed off original Test

Pack (GAM-QCR-QAC-GTL-065 and P&ID only), plus one (1) copy to the Contractor Quality Assurance Manager.

All other records included in the original test packs shall be maintained, stored and finally

handed over to Contractor in accordance with Quality Records.

19. ATTACHMENTS

GAM-QCR-QAC-GTL-064

GAM-QCR-QAC-GTL-065

GAM-QCR-QAC-GTL-066

GAM-QCR-QAC-GTL-067

GAM-QCR-QAC-GTL-068

MINIMUM TEST BLIND THICKNESS CHART

C2 ASU PEARL GTL PROJECT RAS LAFFAN INDUSTRIAL CITY

PRE-TEST CHECKLIST FOR PNEUMATIC TESTING

CHECKLIST GAMA QATAR LINDE QSGTL or its PMC

Signature Date Signature Date Signature Date

MAIN LINE

1 RECEIPT OF APPROVAL TO TEST

2 BLIND FLANGE LOCATION/THICKNESS

3 VALVE OPEN

4 FLANGES TIGHT

5 BONNETS TIGHT

6 PACKING TIGHT

7 BELLOWS TIE RODS IN TEST POSITION

8 FLANGES TAPED AND PINHOLED

9 LEAK TEST FLUID AVAILABLE

10 TOOLS AVAILABLE

FILL MANIFOLD

1 FLANGES TIGHT

2 SYSTEM BLOWN CLEAN

3 LEAK TEST COMPLETED

4 FILL MANIFOLD VALVE CONFIGURATION

5 VENTS OPEN/SHUT

6 FILL MANIFOLD VALVE LOCKED

7 LOCK KEYS WITH S/C TESTING SUPDT.

PRESSURE GAUGE MANIFOLD

1 CONNECTIONS TIGHT

2 PRESSURE TESTED

3 RELIEF VALVE CALIBRATED

4 GAUGES/RECORDER CALIBRATED

COMPRESSORS

1 RELIEF VALVE CALIBRATED

2 POST DRYER STRAINER/FILTER CLEAN

3 ADEQUATE FUEL

GENERAL SAFETY

1 RADIOS AVAILABLE

2 EXCLUSION ZONE IDENTIFIED

3 PERSONNEL EXCLUDED

4 COMPRESSOR/PG MANIFOLD BARRICADED

5 SAFETY/ FIRST AID NOTIFIED

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GAM-QCR-QAC-GTL-064

Company Project No: Piping Test No:

PIPING FIELD Project Title: Location Priority System No:

TEST REPORTS/C Prepared By: Test Media:

Name: Signature Date: Description Of TestLINDE Acceptance By: Reference Flow Sheets (List All applicable):

Name: Signature Date:

Line Number Line SizeDrawing or Isometric

NumberRev

(At Time of Test)

From To Paint CodeInsul. Code

Equipment Tested Trough:

WELDING INSPECTION RELEASE, READY FOR TEST Lines/ piping as tabulated above have been tested and found to (All Welding and NDT is complete and per specification and piping is ready for test) supports, valves and components in place except for items nece

GAMA WELDING Test Witnessed By

Inspector: Name Signature: Date: GAMA Inspector: Name Signature:

LINDE Welding LINDE Field

Inspector: Name Signature: Date:: Engineer: Name Signature:

QSGTL or its PMC QSGTL or its PMC

Inspector: Name Signature: Date:: Inspector: Name Signature

C2 ASU PEARL GTL PROJECT RAS LAFFAN INDUSTRIAL CITYQQQ AAA TTT AAA RRR

GAM-QCR-QAC-GTL-065

Piping Test No:

PIPING FIELD TEST REPORT Description of Test (Continuation Sheet)

Line Number Line SizeDrawing or Isometric

NumberRev

(At Time of Test)

From To Paint CodeInsul. Code

GAM-QCR-QAC-GTL-065

C2 ASU PEARL GTL PROJECTRAS LAFFAN INDUSTRIAL CITY

PIPING PRE TEST PUNCH LISTSub contractor Ref: Report No:Item Description: Inspection Date:Item Location / Area:Sub System:Ref Dwg/Documents:Used Measuring and test equipment ref. (if applicable):

ITEM NO ISO or DWG NUMBERDESCRIPTION OF WORK COMPLETED(Date/Initials)

TO BE DONE BEFORE PRESSURE TEST GAMA LINDE QSGTL or its PMC

REMARKS:ALL ITEMS SHOWN ABOVE HAVE BEEN VERIFIED AND TEST PACK IS READY FOR TEST

ORGANIZATIONS DATE NAME SIGNATURE

AC

CE

BTE

D B

Y

GAMA REP

LINDE REP

QSGTL or its PMC

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GAM-QCR-QAC-GTL-066

C2 ASU PEARL GTL PROJECTRAS LAFFAN INDUSTRIAL CITY

PIPING POST TEST PUNCH LISTSub contractor Ref: Report No:Item Description: Inspection Date:Item Location / Area:Sub System:Ref Dwg/Documents:Used Measuring and test equipment ref. (if applicable):

ITEM NO ISO or DWG NUMBER

DESCRIPTION OF WORK PRIORITY/ CATEGORY

COMPLETED(Date/Initials)

TO BE DONE BEFORE PRESSURE TEST GAMA LINDE

QSGTL or its PMC(A,B,C,D,E)

(X,Y,Z)

ALL PRIORITY A ITEMS SHOWN ABOVE HAVE BEEN VERIFIED AND ARE COMPLETED .INCOMPLETE PRIORITY B ITEMS WILL BE TRANSFERRED TO THE MECHANICAL COMPLETION PUNCH LIST

PRIORITY A : ITEMS SHALL BE COMPLETED BEFORE MECHANICAL COMPLETION (MC)PRIORITY B : ITEMS MAY BE COMPLETED AFTER MCPRIORITY C : ITEMS WILL BE COMPLETED BEFORE SYSTEM RFSU (READY FOR START UP UNIT) IS ACHIEVEDPRIORITY D : ITEMS SHALL BE COMPLETED BEFORE RFSU IS ACHIEVEDPRIORITY E : ITEMS SHALL BE COMPLETED BEFORE ACCEPTENCE IS ACHIEVEDCATEGORY X: CONSTRUCTION GROUP IS RESPONSIBLE FOR COMPLETION OF ITEM. CATEGORY Y: ENGINEERING INPUT IS REQUIRED FOR COMPLETION OF ITEM. CATEGORY Z: COMMISSIONING GROUP IS RESPONSIBLE FOR COMPLETION OF ITEM.


AC

CE

BTE

D B

Y

GAMA REP

LINDE REP

QSGTL or its PMC

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GAM-QCR-QAC-GTL-067

C2 ASU PEARL GTL PROJECT RAS LAFFAN INDUSTRIAL CITY LIST OF BLINDS PER TEST SYSTEM

S

N

O

POSITION BLINDE NO LINE NO PID SHEET INSTALLED BY DATE DISMANTLED BY DATE

GAMA QATAR LINDE QSGTL or its PMC

Signature Date Signature Date Signature Date

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GAM-QCR-QAC-GTL-068

REINFORCEMENT PAD TEST

REPORT

PROJECT : C2 ASU PEARL GTL PROJECT-RAS LAFFAN INDUSTRIAL CITY

Description Acceptance Signature

Test No ISO No Spool No Pad Ref

Date of Test Gama Linde

QSGTL (OR) PMC

REMARKS


GAMA REP

LINDE REP

QSGTL or its PMC

GAM-QCR-QAC-GTL-109

MINIMUM TEST BLIND THICKNESS CHART

TEST PRESSURE bar 10 20 30 40 50 60 70 80 90 100

PIPE SIZE inches (DN)

4 (100) 4.4 6.2 7.6 8.8 9.8 11 12 13 14 14

5 (125) 5.5 7.7 9.4 11 13 14 15 16 17 18

6 (150) 6.5 9.2 12 13 15 16 18 1`9 20 21

8 (200) 8.6 13 15 18 20 21 23 25 26 28

10 (250) 11 16 19 22 24 27 29 31 32 34

12 (300) 13 19 23 26 29 32 34 37 39 41

14 (350) 15 21 25 29 32 35 38 41 43 46

16 (400) 17 24 29 33 37 40 44 47 49 52

18 (450) 19 26 32 37 41 45 49 52 55 58

20 (500) 21 29 36 41 46 51 55 58 62 65

24 (600) 25 35 43 50 55 61 66 70 74 78

NOTES:

1 All test spades to have brightly coloured handles.

2 Test spades to be manufactured using ASTM A 36

3 For pipe sizes greater than 24", the minimum thickness of blind plates will be determined on a case by case basis.

HYDRO TESTING.pdfQCP - FOR PIPING PRESSURE TEST.pdfHYDRO TESTING.pdfQCP - FOR PIPING PRESSURE TEST.pdfHYDRO TESTING.pdfQCP - FOR PIPING PRESSURE TEST.doc064-PRE TEST CHECK LIST FOR PNEUMATIC TESTING.xlsPRE TEST

065-PIPING FIELD TEST REPORT.xls066-PIPING PRE TEST PUNCH LIST.xlsSheet1

067-PIPING POST TEST PUNCH LIST.xlsSheet1

068-LIST OF BLIND TEST.xlsBLIND TEST SYSTEM

109-REINFORCEMENT PAD TEST REPORT.docMINIMUM TEST BLIND THICKNESS CHART.xlspr832_08

031-procedure for hydro and pneumatic testing.pdf

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