MS FOR OFFICE CONTAINER & EQUIPMENT MOBILIZATION & DEMOBILIZATION

GENERAL UNLOADING AND LIFTING OPERATIONS OF CONSTRUCTION MATERIALS / EQUIPMENT'S.

1. GENERAL

This document covers the sequence activities for the Office Containers & Equipment Mobilization & Demobilization, General unloading & lifting operation of construction materials / equipments at the project.

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2. PURPOSE

The purpose of this document is to follow proper methodology and to carry out the activities in sequence for the Office Containers & Equipment Mobilization and demobilization, General unloading and lifting operation of construction materials / equipments at the project.

3. SCOPE

The scope of the work method statement is to outline the procedure and work sequence for the Office Containers & Equipment Mobilization and Demobilization, general unloading and lifting operation of construction materials / equipments at the project. This Works Method details the followings,

• The requirements and procedures in mobilization of office container & equipment to use with Evonik utility supply.
• Responsibilities.
• Organisation chart.
• Manpower & Equipment used.
• Lifting plan.
• Lifting sequence.
• Roof installation sequence.
• Site Location.
• Proposed location for WEC site office.
• Roof Structure.
• Single Line Diagram.
• Risk Assessment.

4. TERMS & DEFINITIONS

• HSE – Health safety & Environment.
• RA – Risk Assesment.
• LM – Lifting Machine.
• LG – Lifting Gear.

5. REFERENCE

• Work Place Safety And Health Act 
• Work Place Safety And Health(General Provisions) Regulations 
• Work Place Safety And Health(Construction) Regulations 2007 
• WSH Operations Of Cranes  Regulations 2011
• Code of Practice on Safe Lifting Operations in the Work Places
• Code of practice for the safe use of mobile cranes
• Specification for personal fall arrest system 
• Code of practice for safe use of machinery 
• Code of practice for working safely at heights. 

6. RESPONSIBILITY

6.1. Project Manager 

• Undergone Project Manager's Safety Course and possess valid certificate. 
• Familiarize himself with the Company's environmental, health and safety management system and ensure its effective application. 
• Take prompt corrective actions to remove any unsafe or unhealthy work conditions and to maintain effectively such corrections made. 
• Ensure good housekeeping is practiced on site. 
• Ensure that environmental, health and safety is planned into all operations. 
• Review all working methods and process, both new and existing to see that all environmental, health and safety are met. 
• Act as Chairman to the site safety, health and environment committee and conduct monthly site committee inspection and meeting. 
• Participate in all incident investigation and dangerous occurrences incidents. 

6.2. Project Engineers 

• Familiar himself with the Company's environmental, health and safety management system. 
• Review any new or changes in processes, equipment and materials to ensure that safety, health and environment are not disregarded. 
• Establish and maintain a programme for the identification and assessment of hazards. 
• Assist in the investigation of every serious or fatal accident and dangerous occurrence and recommend preventive measures. 
• Ensure that method statements, hazard analysis and safe work procedures for hazardous operations must be submitted by the sub-contractors prior to commencement of work on site. 

6.3. WSH Coordinator 

• Undergone Building Construction Safety Supervisor Course and WSH Co-coordinator Course possess valid Certificate. 
• Ensure that all rules and regulations as stipulated in the WSHA (Construction) Regulations are met. 
• Inspect and rectifying any unsafe place of work and unsafe practices. 
• Checking sub-contractors work to ensure compliance with the WSHA (Construction) Regulations. 
• Liaison with sub-contractors with respect to environmental, health & safety works undertaken by them. 
• Assist the Safety Manager, Workplace Safety and Health Officer and Environmental Control Officer in all safety, health & environment matters. 
• Carry out site safety, health and environment programmes and procedures. 
• Assist in organizing safety, health and environment awareness activities such as toolbox meetings, safety, health and environment orientation, safety, HSE promotional activities, etc. 
• Ensure that issuance of personal protective equipment are properly recorded and documented. 
• Coordinates and assures compliance with the Risk Assessment Program 

6.4. Foremen/ Supervisor 

• Responsible for the safety, health & welfare of all workers either assigned or not assigned to him but may be working temporary in his area. 
• Ensure that workers know safety, health and environment rules and regulations, follow safe job procedures and be aware of all major hazards associated with their work and work areas. 
• Maintain satisfactory standards of housekeeping in his assigned area. 
• Investigate all incidents to worker(s) and/or equipment in his area and assist Workplace Safety and Health Officer to put up accurate incident report on all such investigation. 
• Ensure that all workers working in his area use the appropriate personal protective equipment. 

6.5. Lifting Supervisors 

Undergone Lifting Supervisor Safety Course and possess valid certificate

Possess relevant experience in lifting operations for a period of not less than one year before the appointment as a lifting supervisor. 

• Co-ordinate all lifting activities. 
• Supervise all lifting operation by a mobile crane or tower crane in accordance with the lifting plan. 
• Ensure that only registered crane operators, appointed riggers and appointed signalmen participate in any lifting operation involving the use of a mobile crane or a tower crane. 
• Ensure that the ground conditions are safe for any lifting operation to be performed by any mobile crane. 
• Brief all crane operators, riggers and signalmen on the lifting plan 
• If any unsatisfactory or unsafe conditions are reported to him by any crane operator or rigger, take such measures to rectify the unsatisfactory or unsafe condition or otherwise ensure that any lifting operation is carried out safely.

6.6. Crane Operators 

• Undergone Crane Operator's Training Course and possess valid certificate. 
• Before the start of every work shift, to carry out operational tests on all limiting and indicating devices under no load conditions before any lifting operation is carried out and shall enter the results of such tests in a log book or log-sheet. 
• To ascertain whether the ground conditions, in particular the ground surface on which a mobile crane is to be operated, are safe for travel or any lifting operation; and if he is of the opinion that it is not safe for travel or any lifting operation, he shall report this to the lifting supervisor. 
• To ensure that any outrigger when it is required is fully extended and secured. 
• Not to carry out any lifting operation unless he has been briefed by the lifting supervisor on the lifting plan. 
• Not to hoist any object if he is unable to ascertain the weight of the load. 
• Not to hoist any load unless he has received a clear signal from a signalman. 
• Not to engage in any act or manoeuvre which is not in accordance with safe and sound practice. 
• Not to hoist any load if there is any obstruction in the path of manoeuvre and if there is any such obstruction, he shall report this immediately to the lifting supervisor. 
• Not to manoeuvre or hold any suspended load over any public road or public area unless that road or area has been cordoned off
• Not to operate a mobile crane or a tower crane within 3 metres of any live overhead power line. 
• Not to use the crane for any operation for which it is not intended, including pulling or dragging a load. 
• To ensure that any stationary truck mounted or wheel mounted crane is adequately and securely blocked while it is on a slope. 
• To report any failure or malfunction of the crane to the lifting supervisor and to make an appropriate entry of the failure or malfunction in the log book or log-sheet of the crane.

6.7. Riggers 

• Appoint a rigger in a workplace unless the person has successfully completed rigger training course acceptable to the Commissioner. 
• Check the slings to be used for slinging the loads to ensure that the slings are of good construction, sound and suitable material, and adequate strength and free from patent defect. 
• Ensure that an adequate number of legs of the sling are used and that the slinging angle is correct so as to prevent the sling from being overloaded during the hoisting. 
• Determine the weight of the load which is to be lifted and inform the crane operator of the weight of the load; 
• Ensure that only proper lifting gears are used in conjunction with the sling. 
• Ensure that the load to be lifted is secure, stable and balanced. 
• Ensure that any loose load (which includes any stone, brick or tile) is placed in a receptacle to prevent the load or part thereof from falling during the lifting operation. 
• Place adequate padding at the edges of the load which come in contact with the sling so as to prevent the sling from being damaged; and 
• Report any defect in the lifting gear to the lifting supervisor.

6.8. Signalmen 

• Undergone Signalman's Training Course and possess valid certificate. 
• Ensure or verify with the rigger that the load is properly rigged up before he gives a clear signal to the crane operator to lift the load. 
• Give correct and clear signals to guide the crane operator in the maneuver of the load safely to its destination.

6.9. Banksmen

• He will be in-house trained, with a whistle and hi-visibility vest.
• Assist in assessing the ground conditions prior to the entry of equipment/ machinery/ vehicle. 
• Use standard signals to guide the movements of machinery/equipment/vehicle at/to the location of works to be carried out.
• Communicate to the drivers/operators during the movements of the machinery/equipment/Vehicle.
• Station full time on site assisting in guiding all vehicular movements on site.
• Report any incidents/accidents to his immediate supervisor, sembcorp site/safety personnel    
• The movements of machinery/equipment/vehicle will be stopped during the absence of the banksman to prevent any incidents on site. 
• The operator/driver must be able to see the banksman during the communication process.
• The banksman must be stationed in such a way not to be in the line of fire (front, behind or in-between) of the equipment movement

6.10. Workers

• Accepting individual responsibility for their own safe behavior as well as sharing responsibility with their fellow workers and line supervision to look out for their own as well as their co-workers. 
• Work in a safe manner at all times.
• Complying with HSE requirements which apply to an individual’s work activities.
• Keeping the work area in an orderly condition.
• Wear PPE provided to them and inspect it daily.
• Comply with work instructions and permits.
• Attend daily tool box/pre-task meetings
• Inspect all tools before use and on a daily basis.

7. ORGANIZATION CHART

General Unloading and Lifting Operations of Construction Materials / Equipments.

8. MOBILIZATION OF PLANT, EQUIPMENT, TOOLS AND RESOURCES

8.1. Equipments

• Lorry Crane with safe working load 10 tons.
• Transportation Trucks
• Personal Protective Equipments
• Electrical Generators

8.2. Tools

• Measuring and Leveling Tools
• Clamping Tools
• Hand held Tools- Spanner, screw driver, plumb etc.
• Lifting Tools- Belts, Sling, Chain Block, Hoist, Shackle, Ropes etc.
• Portable power Tools like Grinding machine, Drilling Machine etc.
• Stepladder & Extension ladder
• Nails for the metal roofing 
• Heavy duty hammer & half a pound 2” sized roofing nails
• Hand Saw 
• Scaffolding pipe.
• GI wire.

8.3. Man Power

• Project Engineer 1 person 
• Safety coordinator 1 person
• Lifting supervisor 1 person
• Lorry crane operator 1 person
• Rigger man 2 persons
• Banks man 1 person
• signal man 1 person
• General worker 2 persons

9. PERSONNEL QUALIFICATION

• All personnel delegated to the work would  have undergone the relevant mandatory and project specific in-house training
• All personnel would be competent for the tasks that they will be carrying out,
• Supervisory personnel will act as “vehicle commanders” by following and guiding the vehicle into and around the plant
• Please refer the attachment for the competency personnel certificates.

10. METHODOLOGY

10.1.   Preparatory Work

• Ensure that the document received bear the stamp “Issued for Construction” and are of latest revision.
• The documents submitted/referred with this method statement shall be considered as an integral part of this method statement and shall be read in conjunction with the same.
• Lorry Crane Safe Working Load is 10 tons.
• LG & LM certificate to be submitted.
• All vehicles & equipment to be used in the work should be initially checked and approved by Evonik / Sembcorp authorized personnel.
• Lifting Supervisor & Lorry crane operator will check & plan the travel routes prior to mobilization.
• Ensure travel routes & access to the job site is in good condition and free from obstruction.
• Check and confirm crane set-up positioning.
• Working area shall be barricaded with proper devices & warning signs to display.
• Unauthorized person are not allowed in the area barricaded off
• Workers shall wear appropriate PPE for the task.
• Safety Coordinator & Lifting supervisor shall be present at all time during lifting activity.

10.2.   Work Execution Method

10.2.1 Lifting Work:

• All lifting tools, equipments and ropes used for lifting shall be inspected and certified by WSH regulations. Activities shall be done according to the proper method statement for lifting and mobilization.
• Submit method statement and RA for review and approval by Evonik / Sembcorp before commencing the mentioned work. 
• Apply the lifting permit before work commence. Lifting supervisor will conduct tool box and brief the safe lifting operation before work start.
• Lifting plan (as per attachment) shall be filled up and attached with load chart and LM certificate shall be submitted during application for permit.
• Prior to Lifting Works, it must have an approved Lifting permit and Lifting Plan. Which indicate the type of cranes & lifting gears accessories indicated. The lifting plan must be attached with the lifting permit and display in the lifting area.
• Before starting the lifting work, the assigned people must wear proper PPE and adequate safety procedure must be implemented.
• All employee and worker involved in the work should first undergo training or safety induction with Sembcorp
• WEC shall employ an experienced, competent and responsible Lifting supervisor to plan and execute lifting operations. 
• Barricade the marked location scheduled for unloading and lifting operation with safety signages.
• To Provide safe work during mobilization and demobilization of office containers, there are consideration which take according to weight of the container.
• The site supervisor should prepare the site area to be clean and clear from obstruction.
• Positioned the Lorry Crane near the designated storage area and steel plate should be place over the landed of the lorry crane out-rigger.
• Attached the four hooks lifting gear with tag line to the hook attached to the tip of lifting boom.
• Attached the four hooks to the four lifting slot corners of steel plates, container and ensure that the hooks were locked.
• Lift one steel plate / sheet pile and container at a time and unload at the nearby designated storage area.
• Repeat the process until all materials were unloaded.
• Safety equipment must always present and ready for immediate use.

10.2.2 Roofing  Work

• Determine the roofing material required.
• Cut the timber to the precise length.
• Fix the scaffolding pipe using clamp in the container vane edge.
• Use stepladder to reach the top of container & hang up the hook to scaffold pipes to prevent falling.
• Lift up timber one by one and fixed using GI wire to scaffolding pipe.
• When the roof structure is finish, put the roofing sheet using 2” nails.
• Finally do proper house keeping. 

10.2.3 Installation of lightning protection.

• Bolt one No. of Air terminal in each corners of the top layer of the container.
• Connect the four air terminal each other with the use of aluminium tape.
• Connect the air terminal with copper rod in underground using aluminium tape.
• Finally do proper house keeping. 

11. HEALTH, SAFETY AND ENVIRONMENT

• WEC HSE Manager shall ensure that the work is performed accordance to the approved Construction Safety Manual and precautions specified in the work permit.  He shall ensure that barricades, warning tapes, warning signs, firefighting equipments and first aid kits are readily available at the working area. 
• Tool box talk shall be conducted on a daily basis to inform the workers of the recent safety issues and incidents and to get feedback of any unreported unsafe acts.  Feedback will then be processed and resolved.

11.1 Safety Procedures

• Area shall be barricaded adequately with warning barriers prior to any lift.
• All Equipment shall be checked for good conditions before commencing the work.
• Unauthorized persons shall be excluded from the area.
• Lifting equipment capacity and correct load slinging will be verified.
• When lifting, the personnel shall not remain in the lifting equipment work area.
• Adequate standards shall be adopted for the construction of stages, planks, scaffolds, etc.
• Adequate caution boards and warning signs shall be provided.
• All lifting equipment shall have valid certificates.
• Only trained and authorized personnel shall operate the vehicles / Machinaries.
• All lifting gears and shackles used shall be approved type with valid certificates.
• Electrical installations and equipment shall conform to standards.
• Do not stand under suspended loads.
• On completion of job, the area shall be cleared of any materials and keep clean and tidy.
• Hazard analysis for hazardous operation shall be carried out prior to commencing the works.

12. ATTACHMENT 

• Proposed location for site plan.
• Proposed site office and worker rest area.
• Roof structure.
• Single line drawing for site office container.
• Certificates.
• Lifting Plan.
• LM, LG & callibration certificates.
• Appointment letter.
• Training matrix.

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METHOD STATEMENT FOR FABRICATION WORKS STRUCTURAL STEEL

1. SCOPE OF WORK

The purpose of this procedure is to describe the fabrication methods, welding techniques, quality assurance and quality inspections to be carried out about welding, weld repair and weld inspections for ABC.

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2. PROGRAMME

Programme for Fabrication works refer to ABC Structural Steel works Programme.

3. MATERIALS

3.1. Material Supply

The quality of materials should be according to Customer specifications and drawings. The Grade of structural steel shall conform to European Standard EN 10025 as noted on the drawings with minimum yield strength as specified below:
The steel shall be free from loose mill scale, surface defects, flaky crust, slag inclusions, lamination, pitting and be of full weight or thickness within tolerances specified in standard.
Approved Steel suppliers will be used. As a normal practice mill certificates will be made available for steel ordered. Substitution if any, on sizes or quality shall be implemented only after obtaining approval from the Owner / Engineer.
All steel supplied shall be stored in a safe condition with proper care taken during storage to ensure that no damage occurs, which renders the materials un service able.
All steel material shall be stored at the shop/yard above the ground on the platforms, skids or concrete blocks.
Materials for this project shall be marked differently from the other project material. The identifying and marking system shall be established. All steel material procured shall be properly documented to ensure conformity to specifications and it shall be the responsibility of the control foreman or staff to ensure conformity of steel to the specifications.

3.2. Material Identification and Traceability

After receipt of raw material warehouse responsible shall verify the material and forward the Raw material inspection report to quality acceptance. Project Engineer will inspect the raw material and verify the heat number correlation and material specification. On acceptance, Quality staff will give a Material Code number for punching as per Identification and Traceability Procedure. Refer Project Quality Plan.
The Fabrication Engineers / Foreman shall be responsible to arrange to mark the Item number and punch the material code number on each member.

4. METHOD & SEQUENCE OF THE WORK

4.1. Fabrication

The fabrication of steel works shall be carried out as per approved drawings and specification provided by ABC. The method and sequence of fabrication is given in the following chapters.

4.2. Fabrication Process

4.2.1. Cutting Plans

The cutting plan shall be prepared for all material before commencement of fabrication work. Material mark number shall be provided for easy identification.

4.2.2. Marking

Marking shall be carried out as per approved cutting plan under the guide lines of fabrication foremen, and subsequently verified by the Fabrication engineer prior to cutting. Prior to marking the material shall be checked for its identification and the defects. Necessary items shall be carefully and accurately marked in accordance with approved shop drawings or templates.

4.2.3. Cutting

Material cutting shall be carried out either by shear, plasma, CNC Profile cutting and drilling machine, pug cutting machine. The edges of all plates shall be perfectly straight and uniform throughout. Cut edges shall be visually examined for laminations and inclusions. All corners shall be shaped so as to be notch free, sheared or cropped edges shall be dressed so that they are free from distortion and burrs. Edge preparations for field welding shall be done in the shop.

4.2.4. Cutting of Heavy Section:

The relevant standard rolled shapes or plate’s thickness exceeding 50 mm before cutting pre- heating (Min 660 C) shall be used. All cut edges shall be free of sharp notches and gauges.

4.2.5. Straightening

All steel material shall be straight and free from bends or twists. If the sections are distorted or twisted during transit, storage etc. they shall be straightened and/or flattened by straightening machine at ambient temperature, though minor bends may be corrected by limited heating under supervision.

4.2.6. Bending

The bending of plates and sections to specially required shapes shall be done on appropriate machine.

4.2.7. Holes

Punching and or drilling shall be done accurately as per the drawings and burrs removed effectively. Where several parts are to be connected to very close tolerances, such parts shall be first assembled, tightly clamped together and drilled through. All holes shall be minimum 1.5mm larger than the size of the bolt. The holes shall be drilled / reamed within the allowable limits specified in Project specs. Holes for bolts shall not be formed by a gas cutting process except in special case with specific permission of the customer.

4.2.8. Notches

The ends of all joints, beams and girders shall be cut truly square unless required otherwise and joist flanges shall be neatly cut away or notched where necessary, the notches being kept as small as possible.

4.2.9. Assembly

Structures shall be assembled in jigs or on suitable surfaces plates with proper layouts. The parts to be joined groove welds shall be brought into correct alignment. The members to be welded shall be held in the correct position by bolts, clamp and wedges where practicable. Any wedges used to space root gaps shall be removed from the root gaps immediately after tack welding and before making the root run. After completion of joint fit-up, ABC controller will check the fit-up and he will release the joint for welding.
The fabricated components shall be assembled in such a manner that they are neither twisted nor otherwise damaged. In order to minimize distortion in a member the components shall be positioned by using clamps, clips, jigs and other suitable manner and fasteners shall be placed in a balanced pattern.
If necessary items like roof trusses shall be trial assembled as per approved assembly drawing keeping in view the actual site conditions prior to dispatch to site for erection, so that, they can be conveniently pre-assembled before erection. Necessary match marks shall be made on these components before disassembly in the shop and dispatching.

4.2.10. Bolting

All bolt and nuts shall be used as per approved shop drawing and contract specification. Anchor bolt and nuts shall be as per specification.

4.2.11. Welding

Welding procedure qualifications and welders and welding operators’ performance qualification test shall be made in accordance with BS EN ISO or relevant ASTM standards.

4.2.12. Edge Preparation Inspection

The edges or surfaces of parts to be joined by welding shall be uniform, smooth and cleaned from all foreign materials such as moisture, slag, oil, grease, paint, scale or rust. Edge preparation shall be verified for proper groove angle and root face dimensions. Welding groove dimensions shall be inspected as per shop drawings under tack-welded condition prior to welding. The allowable misalignment of adjoining plates to be butt-welded shall be in accordance with  BS-EN- ISO.

4.2.13. Fit-up Assembly

The Members or Plates to be welded are fit-up, aligned and retained in position to welding operations. The location of integral parts / members to be assembled shall be checked dimensionally prior to full welding. Tack welds shall be use for secure alignment. Generally, the tack welds shall be subject to the same quality requirement as the final welds unless otherwise specified. Tack welds containing any cracks shall be removed thoroughly and replaced with sound track welds. Size and location of tack welds based on Specification.

4.2.14. Backing Strip Inspection

Back-stripped surfaces shall be visually checked for root gap prior to start welding.

4.2.15. Welding Process

• The following practices shall be used for welding.
• Run-on and run-off plates shall be welded at the ends of weld lines of crucial butt welds.
• Prior to welding the surface to be welded and filler material to be used shall be checked.
• Prior to welding root opening, groove angle and the crucial dimensions shall be checked and groove face shall be free from oil, water and dirt.
• Prior to welding the welding current shall be measured the most appropriate welding condition (current & voltage) shall be maintained with ammeter and voltmeter throughout welding work.
• All welding is to be carried out in an approved environment and, if necessary, additional protection may be required. All joints are to be dried before welding in damp climatic condition.
• During welding work, the most appropriate arc length, angle and welding speed shall be maintained so that welding defects shall be avoided and arc energy requirements are satisfied.
• Fillet weld terminating at the end of members shall be returned continuously around the corner for a distance of not less than twice the size of the weld.
• Surfaces of butt joints required to be flush shall be finished so as not to reduce the thickness of the inner base metal or weld metal than 1mm or 5% of the thickness whichever is the smaller not leave reinforcement that exceed 1mm. All reinforcement shall blend smoothly into the plate surfaces with transition areas free from undercut.
• Chipping and gouging shall be used, provided grinding follows them.
• In the case of multi-layer welding, slags and spatters on each completed bead shall be removed prior to the start of welding for the following layer.
• All craters shall be filled to the full cross section of the welds.

4.2.16. Type of Welding Process

All Welding activities shall be carried out as per the approved Welding procedure specification. The following Welding Process used in Fabrication works

• MIG & MAG Process
• SMAW Process
• FCAW Process
• SAW Process

4.2.17. Electrodes

The electrodes used for welding shall be of suitable type and size depending upon specifications of the parent materials, the method of welding, the position of welding and quality of welds desired. However, only low hydrogen electrodes (E 7018) shall be used for plates and sections.
All low hydrogen electrodes shall be baked and stored before use as per manufacturer’s recommendation. The electrodes shall be re-baked at 250 °C to 300° C for one hour and later on cooled in the same oven to 100°C. From baking oven, the electrode shall be transferred to a holding oven maintained at 60° C–70° C. The electrodes shall be drawn from this oven for use. Where coated electrodes are used they shall meet the requirements of relevant BS-EN-ISO Standard, Bare Electrode and Granular flux conform to relevant BS-EN-ISO Standard. Where Charpy V – Notch values are required on the base metal, an electrode meeting the requirement of BS-EN-ISO or AWS and having a minimum average Charpy V- notch impact strength of 25 ft, lbs. at –200c.

4.2.18. Preheat and Inter-Pass Temperature

Preheating of above 65-degree C shall be applied for over 38mm thick of S355JR, JO, J2 and K2 steel plate by means of oxy- acetylene flame or non-carbonizing like LPG. Uniform heating of the surface extending up to a distance of three times the thickness of the plate on either side of the plate shall be obtained. Preheating minimum 177-degree C shall be applied for relevant BS-EN-ISO Standard rolled shapes or plates equal or greater than 50mm in thickness joined by partial or full penetration welds in tension The specified preheat temperature and minimum inter-pass temperature shall be maintained during welding progress. Thermo-chalk or other approved methods shall be used for measuring the plate temperature.

4.2.19. Sequence of Welding (Control of Distortion and Shrinkage)

• The sequence of welding shall be selected to ensure that the components assembled by welding are free from distortion and large residual stresses are not developed
• In assembling and joining parts of a structure or of built – up members and in welding reinforcing parts to members, the procedure and sequence shall be such as will minimize distortion and shrinkage.
• In so far as practicable, all welds shall be deposited in symmetrical sequence so that shrinkage on both sides of the structure will be equalized.
• Joints expected to have significant shrinkage shall be welded before joints expected to have lesser shrinkage and with as little restraint as possible.
• All shop splices in each component part of a cover plate beam or built – up members shall be made before such component part is welded to other components parts of the member.
• All welding shall be carried out continuously to completion or to a point that will ensure freedom from cracking before the joints is allowed to cool below the minimum specified preheat and inter- pass temperature.
• Butt weld in flange plates and / or web plates shall be completed before the flanges and webs are welded together.
• The ends of butt welds shall have full throat thickness. This shall be obtained on all main butt welds by the use of run off and run on pieces adequately secured on either side of main plates. Additional metal remaining after the removal of extension pieces shall be removed by grinding or by gas cutting.

4.2.20. Visual Examination of Welds

• Each reinforcement height for butt welds and leg dimensions for fillet welds shall be checked in addition to bead contour appearance. Also, possible presence of such service defects, undercut, crack, surface porosity etc. shall be checked visually. The reinforcement on each side of butt-welded joints shall be checked in accordance with AWS D 1.1 or BS-EN-ISO. 
• Temporary lugs, braces and clips shall be welded in connection with WPS and these shall be removed without damaging the base metal and the area ground flash and smooth.

4.2.21. Procedure for Built Up Girders / Beams

4.2.21.1. Preparation of Material

Marking of steel shall be done in accordance with the shop drawings and cutting plan. Material cutting shall be carried out by gas. Either by pug cutting or CNC machine to cut the plates to the required sizes. The dimensions and shape of the edges to be joined by welding shall be checked as per approved drawing / specification. Surfaces and edge preparation shall be free from loose scale, slag, grease, paint and other foreign matter. Edge preparation shall be verified for proper groove angle and root face dimensions. Joint surfaces shall be free from fins and tears.

4.2.21.2. Fit-up Assembly

Built up Girder Structure shall be assembled in jigs or on suitable surfaces plates with proper layouts as per the Drawing. Butt weld in flange plates and / or web plates shall be completed before the flanges with web fit-up Assembly. The Flange Plates shall be fit –up with web plate, for correct alignment and held in position by use suitable devices or by tack welds until welding is completed to assure the most suitable welding position and accurate assembly. After completion of Flanges and Web joint fit-up, ABC Control or shall be check the fit-up and release for welding.

4.2.21.3. Welding Process

Welding shall be carried out as per the approved Welding procedure specification (WPS) and welders. Run-on and run-off plates shall be welded at the ends of the Girder / beam.
Before welding start, joints shall be preheated above 650c by means of gas flame to bring to the specified preheat temperature in the full thickness of the base metal for a distance equal to the thickness of the part being welded. (Thickness t > 38 mm) specified preheat temperature and minimum inter-pass temperature shall be maintained during welding progress. The temperature shall be checked by thermal chalk. The approved electrodes shall be used for welding as per WPS. During welding most appropriate arc length, angle and welding speed shall be maintained so that welding defects shall be avoided.
In the case of multi-layer welding, slags and spatters on each completed bead shall be removed prior to the start of welding for the following layer. After completion of welding all Temporary lugs, Run-on and run-off plates shall be removed without damaging the base metal and the area ground flash and smooth. All welding area shall be clean and inspect as per specification. After completion of inspection and test for girder release for further fabrication activities.

4.2.22. Non-Destructive Testing (NDT):

All non-destructive testing shall be performed as per approved agency as per the contract in accordance with the requirements of the applicable standards and project specifications.
Non-destructive Testing shall be performed as follows:

SN.	Description	Visual Inspection	NDT TYPE
			UT                     RT                 MPT
1	Raw material plate thickness 50 mm and above	100%	X	X	X
2	Full penetration butt welds	100%	X	X	X
3	Partial Penetration butt weld	100%	X	X	X
4	All fillet weld	100%	X	X	X

5. PROJECT SPECIFICATION

A third-party Inspection agency shall be engaged as independent and approved testing and inspection agency to carry out the UT and MPT on Weldments.

5.1. General Requirement of Visual Inspection

Weld Visual inspection shall be carried by Fabrication Engineers or certified Welding Inspector as per BS-EN-ISO standard for external defects like, surface porosity, under cut, excess penetration, over laps, lack of penetration or incomplete fusion and fillet sizes.

5.2. General Requirements of Liquid Penetrant Testing (PT)

Liquid Penetrant Testing procedures shall be in accordance with ASTM E 165 or relevant BS-EN- ISO Standard. This test shall be carried during the welding process while back gouging. The evaluation of indications and the acceptance criteria shall be in accordance with Sec. VII Div.1 ASME code or relevant EN-ISO standards.

5.3. General requirements of Magnetic Particle Testing (MT)

Magnetic particle Testing procedures shall be in accordance with ASTM E 709, AWS D 1.1 or relevant BS-EN-ISO Standard. The evaluation of indications and the acceptance criteria shall be in accordance with ASTM E 709, AWS D 1.1 or relevant BS-EN-ISO Standard. Independent testing authority MPI reports shall be obtained for fillet welds.

5.4. General Requirements of Ultrasonic Examination (UT):

The ultrasonic Testing of plates for lamination shall be in accordance with SA 435 and UT of Butt joint shall be in accordance with ASTM E 164, AWS D 1.1 or relevant BS-EN-ISO Standard. Independent testing authority UT reports shall be obtained for all   butt joints.

6. DIMENSIONAL INSPECTION

The fabricated steel structure shall be inspected in accordance with respective approved fabrication drawings and specification. Overall length, orientation, diagonal measurement and all other dimensions shall be verified and recorded. If dimensions are not with required tolerance the member shall be corrected prior to further process. All dimensions shall be recorded in approved format. 100% visual inspection shall be carried out for external defects. ABC Quality staffs shall conduct the final inspection and review all inspection reports and prepared as inspection and test plan (ITP).

7. PROTECTION

7.1. Shot Blasting  (Surface Preparation)

Abrasives for blast cleaning shall be clean, dry and free of any constituent. Silica sand shall not be used. Surface preparation shall be in accordance with ISO 8501-01 and technical data sheet of specified paint. Abrasive shall be of steel grit and shot in the ratio of 70% - 30%. The surface grade finish shall be Sa 2 ½ or as recommended by manufacturer. Surface profile shall not be less than 15 microns and more than 150 microns, since too low height, prevents proper adhesion and too high profile may lead to profile peaks protruding the coating resulting in early pinpoint rusting. Paint shall be applied to dry, clean prepared surfaces under controlled favorable weather conditions and in accordance with manufacturer data sheet.

7.2. Painting Application

Painting shall be applied as per the project specification. Dry film thickness shall be checked prior to shipment to project site and painting inspection report shall be maintained. Preparation generally shall comply with requirements SSPC and printed instructions of the manufacturer. Check that all coating materials to be used are recommended by the manufacturers for the particular surface and condition of exposure. Painting shall be carried out with skilled workers. All coating materials shall be applied evenly in a continuous full coat free from over-spray, dry-spray, wrinkling, sagging, curtaining, holidays, thin spot, pinholes and other film defects.

8. PACKING AND DELIVERY

The painted structures after fabrication shall be protected from further damage during transportation. The materials will be loaded on to the trailers using timber supports and separators and secured properly to prevent any damage to the material while transportation to site. Fabricated items will be delivered loose. Minor fabricated items, which are not likely to be subject to permanent deformation during handling operations (i.e. bracing etc.) maybe bundled or hoped. Small items (i.e. bolts, loose, cleats etc.) will be packed in crates/drums or loaded on pallets.

9. INSPECTION AND TEST PLAN

Approved Inspection and test plan shall be implemented during each and every stage of fabrication, to ensure the work is carried out with full compliance drawings and specification. The Inspection and approving parties as per ITP shall ensure the quality of work at every level.

The end

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METHOD STATEMENT FOR SPOOL FABRICATION OF STEEL PIPING

1.     PURPOSE

The purpose of this method statement is to provide a standard for the fabrication of steel piping constructed at Project. This method statement defines the methods and processes to be adopted, to ensure that all activities related to the above work are done in accordance with the appropriate project specifications.

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2.     SCOPE

This method statement describes the general requirements for shop and field fabrication, and inspection of all piping materials for the project. Pipe fabrication shall be performed in accordance with the purchaser's Specification, drawings, codes and standards, in order to become higher Quality of productions by exact operation.  

3.     REFERENCE DOCUMENTS

• General Requirements
• Welding
• Station and Manifold Piping and Tie
• Radio Graphic Inspection and Other NDT
• Contractor Safety
• Shop and field fabrication of piping
• Flanges and fittings
• Chemical Plant and Petroleum Refinery Piping
• Inspection and Test Plan for Shop Fabrication of A/G Piping
• Material Control Procedure
• Receiving Inspection Procedure
• Welding Material Control Procedure
• Heat Treatment Control Procedure
• Welding Procedure Specification with Procedure Qualification Record
• Piping Weld Repair.

4.     RESPONSIBILITIES

The piping manager shall be responsible for the following:

• Preparation, revision and the implementation of this method statement.
• Establishment and execution of fabrication and erection schedule and sequence
• Control of construction documents and drawings
• Overall site safety management
• Ensures that all fabrication and erection tasks are done as per specification.

The QA/QC Manager shall be responsible for the following:

• Reviewing of this method statement
• Performance of all Inspection works as required
• Check, monitor and evaluate the use of latest revision of applicable design documents and drawing in fabrication/erection of pipes
• Review and approval of Inspection and Test Plan and assignment of Inspection points.

HSE manager has the overall responsibility regarding development, implementation and monitoring of HSE program capable of achieving lowest exposure to hazards and accidents on the site.

5.     SAFETY

5.1.      Site Safety

• All active site workers shall wear appropriate safety equipment and clothing to prevent electrocution and burns.
• When welding, inflammable materials shall be removed from work area to avoid ignition and possibly fire outbreak.
• Only qualified welders, fitters and fitter mates shall be allowed to carry out welding, cutting and grinding activities on site.
• Welding and electrical cables shall be properly arranged to avoid damage and possible current leakage.

5.2.      Lifting / Rigging Works

• Mechanical / manual lifting shall be applied in the lifting operation using qualified and experience riggers.
• All lifting operations including movement of steel pipes and fittings, valve, etc shall be carried out by experienced riggers.
• All lifting equipment including slings, shackles, lifting beam etc, shall be pre mobbed / inspected and color coded prior to being used.

5.3.      Work Site Condition

• Shop shall be prepared to maintain adequate control of all items on site.
• Housekeeping shall be conducted on a regular basis to maintain an orderly, clean, healthy and safe work place.
• All safety precaution shall be performed in accordance with the attached job hazard analysis and pipe spool fabrication and painting works.

6.     GENERAL FOR PIPE FABRICATION 

6.1.      Fabrication Area

Fabrication of the different materials, carbon steel and stainless steel materials will be carried out in separate designated areas. The stainless steel materials will be fabricated at the shop or field. Work areas for stainless steel materials shall be separated from carbon steel work areas. Stainless steel materials will be stored in separate areas on the timber lined floor of the stock area and will be moved by the use of web slings or by hand into clean timber / rubber lined trestles / work benches. There shall be no direct contact between carbon steel and stainless steel material under any circumstances. Tools for use on stainless steel, carbon steel materials will be kept in separate tool boxes under the control of the material controller and foreman.  All tools such as wire brushes, cutting tools for facing machines will be identified by color codes for carbon steel, and stainless steel materials.

6.2.      Material Control

All material shall be in accordance with the material control procedure,

• All material shall be fully inspected upon receipt to be ensured that the correct grade of material has been supplied and that identification, dimensions, material quality and preparation are in accordance with the requisite standards and specifications and the Material Receiving Inspection Procedure
• Material found to be defective or incorrectly marked shall be immediately placed in a quarantine area separate from accepted material with sufficient safeguards to preclude it being used and should be marked with “HOLD “label.
•  Carbon steel, stainless steel materials will not be transported or stored in such a way as to cause cross contamination of the materials as per the Material Receiving Inspection Procedure
•  All flange faces including gasket grooves in ring joint flanges shall be protected by plastic cap, plywood or equivalent method before fabrication stage or relocating. After completion of weld, flange face shall be protected again by plastic caps or plywood.
• All materials, whether loose or prefabricated will be stored as per the Material Receiving Inspection Procedure
• Materials which have been damaged or found to have defects will not be used except where there are only minor surface marks, in which case will obtain approval from Company. The materials shall be dressed provided the min. wall thickness is not reduced and the manufacturing tolerances defined in the appropriate material or Purchasing specification are complied with.
• Scratches on gasket faces are not allowed.
•  Any re-facing that reduces the flange thickness to less than the minimum thickness allowed by the relevant code or standard is rejected. Edge thickness of flange will be checked after re-facing.
• Materials (pipes, fittings and others, etc.) shall be received separately from the Material Control Department as specified on the material requisition sheet issued by the Design Department. The Material Control Department shall control and issue the material in accordance with the Material Control Procedure.
• All materials for pressure part shall be shall be subject to traceability. Apart from ordinary carbon steel, Stainless Steel (SS) and Low Temperature Carbon Steel (LTCS) shall be subject to traceability.

7.     FABRICATION SEQUENCE

7.1.      Spool Fabrication Flow

The spool fabrication will be implemented with the sequence of marking, cutting, fit-up, welding, and painting.

7.2.      Marking

All materials shall be marked for identification and traceability

All materials shall be marked for identification and traceability purposes as follows:

• Installation area
• sheet number
• Spool number

The cut pipe spools shall be marked with their respective spool numbers, in accordance with the marked up fabrication drawing.

The method used for marking shall not result in contamination of the Material, significant strain hardening, or sharp discontinuities.

Marking for cutting shall include all dimensions (diameter, wall thickness, length) and the joint detail of drawings and be done exactly taking into consideration allowance for welding shrinkage & cutting loss.

In case the original identification markings are unavoidably cut out or The material is divided into two or more parts, the marking shall be Accurately transferred for each pieces prior to cutting to a location Where the marking will be visible on the completed spool.

7.3.      Cutting and Edge preparation

Carbon steel shall be cut by method of flame cutters or Stainless steel shall be cut by a plasma cutting machine If plasma arc cutting is done the following procedure is employed.

Large sized pipes (above 28" NPS) & holes of branch connections shall be cut by a plasma cutting machine.

 When cutting starts, if access permits, a receiving basket for spatters shall be inserted in the inner cutting area of the pipe to avoid adherence of spatters to internal wall of pipe.

If the cutting area is inaccessible, a spatter compound is applied to the inside cutting area by brush, roller or swab. The application of the compound is applied completely around circumference, a minimum of 200mm each side of the cutting area.

After cut, the anti-spatter compound shall be removed by clothes or other methods.

All materials cut by a flame or arc shall have the edge ground back to clear the affected zone. The grinding wheel is marked by an impregnated red dye in the make-up of the disc which denotes chloride free material when used for stainless steel. Wire brushes with stainless steel bristles will be used, dedicated to stainless steel and high alloy materials.   Files for use on stainless steels and non ferrous alloys shall be NEW and dedicated to a particular alloy only.

All edges shall be accurately maintained as per design requirement with a smooth even surface with all slag removed.

Beveling will be performed with a grinder. Separate machines will be used for carbon steel and stainless steel. Preparation will be in accordance with the approved

The preparation of edge for welding shall be done by machining or grinding.

Edge preparation shall be performed in accordance with the approved WPS.

The surfaces of the edge preparation shall be free from tears, grease, oil slag, scale or internal burrs.

Stainless steel shall be beveled by a grinding. Separate machines will be used for carbon steel and stainless steel.

7.4.      Fit – up

Alignment for the fit-up of the piping components shall be executed on a steel floor or steel jack stand for carbon steel spools. For stainless steel spool fabrication, the floor will be covered with wooden planks or rubber. All stands will be insulated with clean rubber sheeting to prevent contamination of the spools. Under no circumstances shall stainless steel materials be allowed to come into contact with carbon steel.
Pipe shall be properly supported at least 150mm off the ground and aligned by jigs or clamps in order to eliminate strains prior to tack welding. Where jigs or clamps are used for stainless steel fabrication, these items will be lined with clean rubber or stainless steel material to eliminate the possibility of contamination with other project material.
The number of welds in a spool shall be kept to a minimum. Minimum spacing of circumferential welds between center lines shall not be less than four (4) times the pipe wall thickness, or at least 2 inches.
The bolt holes of flanges shall straddle the normal horizontal and vertical centerline of pipe.
Holes for attachment of weldolets and nippolets shall be performed made using gas torch and all burrs shall be removed.
Adjacent sections of welded pipe that are joined by butt welding shall have the longitudinal weld seams positioned so that they are least 15 degrees apart.
Prior to performing main welds, tack welds shall be done by this procedure
Tack welds shall be made by qualified welders.
The length and number of tack welds for the diameter of pipe being welded shall be specified as follows
Permanent tacks of the desired penetration and workmanship, and conforming to need not be removed before welding unless handling may have caused the tacks to crack. Any crack tacks will be completely removed by grinding and grinding areas to be checked by MT or PT.    

7.5.      Welding

All welds shall be performed in accordance with the approved WPS and Welding material control procedure which shall be displayed on a notice board close to the work.

Any cracks, blowholes, cold laps, unusual irregularities, slag, flux, or other impurities that appear on the surface of any welding bead shall be removed by grinding or chipping before depositing the next successive bead. In the case of submerged arc welding of carbon steel the removal method used may be air arc gouging, which shall be cleaned out by grinding to shiny metal.

The requirement of the finished weld reinforcement for all materials should comply with ASME B 31.3 specification for piping.

If arc strike occurs, this shall be removed by grinding with Company's prior approval. The ground area shall be inspected by MT (carbon steel) or PT (stainless steels).The remaining wall thickness shall not be less than the stipulated minimum, as stated in specification or ASME B 31.3 If pipe is ground severely to repair, the damaged part of the pipe shall be removed.

Internal purge of argon shall be used for the GTAW process root pass on stainless steels as specified by WPS                                               

The sketch below demonstrates:

• Purging will be carried out by using the best method for the particular application during welding.
• Each end of the pipe adjacent to the weld of tie in spools shall be dammed by using water soluble paper or sponges at a distance of 150㎜ from the weld 
• No undercut or overlapping (cold lap) is permitted.
• Acceptance criteria for welds. Acceptance criteria for welds shall be in accordance with the ASME B 31.3, Table 341.3.2.
• Preheating and inter-pass shall be maintained as per approved WPS
• Penning and hammering of weld runs are prohibited.
• Branch connections and outlets
• All welded branch connections shall be jointed to the header with full penetration welds.
• Preparation for branch connections shall be jointed as per ANSI B 31.3, Fig. 328.5D and drawing.
• Reinforcement pads or saddles required by specifications and drawings shall be of the same material as the main pipe (unless specified otherwise) and shall be formed and countered to provide a good fit to both main and branch pipe.
• Branch reinforcement pads or each segment thereof shall be provided with a minimum 3.0 mm drilled and tapped whole prior to fitting to the pipe, so ensuring leak detection, venting and testing facilities. Whenever possible, pad should be made in one piece before fitting onto pipe.
• In case of stainless steel marking shall be done with weather proof chalk (chloride free crayon), low chloride marking pen (less than 30 PPM) or engraving.
• The method will be used for the permanent marking for welder identification, in lieu of marking the weld, appropriate records shall be filed as per approved inspection procedure.
• After spool installation, testing and final reinstatement of stainless steels, all markings shall be removed using an appropriate solvent.
• Welding material control. This shall be controlled by welding material control procedure
• Qualification of welders and welding operators.
• Qualification of welders and welding operators shall be performed in accordance with qualification and control procedure of welders and welding operators. All welding procedures, welders & reference to be used shall be qualified in accordance with ASME B 31.3 paragraph 328.2
• Performance qualifications will be carried out for all welders and welding operators in accordance with the requirement.
• All welders should always keep their identification cards at all times with their name and number plus a photograph, signed by ABC surveyor.
• The qualification limits and ranges for WPS / PQR and welders will to be based on ASME B 31.3
• The acceptability of the test weld shall be judged as follows. Visual inspection by inspector; Root bead and surface of weld. Burn thru during application of hot passes and subsequent passes, after visual acceptance, is cause for immediate disqualification Radiographic examination or bend test in accordance with ASME B 31.3.

7.6.      Temporary Attachments

• Piping fabrication shall be achieved by use of clamps, jigs, fixtures, without welding to the pipe or fitting.111111111111111111111
• The use of cleats, bridge pieces, tacking strips or other attachments welded temporarily to pipe work to facilitate fabrication shall be of the same or equivalent material as the pipe work to which they are supposed to be attached.
• Initial fitting up can be achieved using temporary bridge tacks across the groove

7.7.      Threaded and Socket Welds

• Threads shall be concentric with outside of pipe, per ANSI B 31.3, tapped and cleaned out.
• All surfaces of threaded joints shall be checked before connection, and any dust, oxide and grease shall be removed.
• When socket weld fittings are used, pipe shall be spaced approximately 1/16 inch (1.6 mm) away from the “bottom “of the socket. Minimum gap to be 3/64 inch (1.2 mm) and maximum to be 1/8 inch (3.2 mm).
• A sealant for threaded piping can’t use Teflon tape except for hydraulics where fluid thread sealing material shall be utilized.
• Screwed connections subject to seal welding shall be made without the use of sealing compound.
• Seal welding of threaded connections shall be done by a qualified welder and seal welds shall cover all exposed thread.
• The joint shall be cleaned of all cutting oil and other foreign material and made up dry to full thread engagement, before seal welding.
• Thermo wells shall not be seal welded.
• Seal welded and threaded piping shall not be substituted for socket weld piping connections without prior written approval by Company.
• Unless otherwise stated on approved drawing or specifications, pipe Threads shall conform to     ASME B 2.1

7.8.      Material Segregation

 Direct contact between carbon steel and stainless steels is not permitted.

Tools and wire ropes containing carbon steel, grinding wheels and discs contaminated with carbon steel shall not be used on stainless steel.

Tools to be used for fabrication of stainless steel and non-ferrous alloy piping and piping components shall be stored separately to avoid mixing with tools previously used on carbon steel fabrication work.

7.9.      Tolerance

The dimensional tolerance shall be in accordance as follows.

1) Length

Length	less than 12mm	12mm and longer
Distance of any two parallel or crossing center lines	± 12mm	± 12mm
Centre to flange face
Flange face to flange face

7.10.      Heat Treatment

Pipe Heat Treatment shall be performed in accordance with the approved Heat treatment control procedure Table 331.3.1 of ASME B 31.3 and approved WPS.

7.11.      NDE and Repair of defects

Repair welding shall be performed in accordance with piping weld repair procedure and Inspection for welds shall be examined in accordance with ITP

All final examinations shall be performed after any required post weld heat treatment.

Root concavity is not permitted. (Too restrictive - follow ASME B 31.3 table 341.3.2, as applicable)

Undercut shall be limited the requirement of ASME B 31.3, Table 341.3.2 for industrial piping.

The removal of defective areas shall be by machining, grinding, chipping or arc / air gouging followed by grinding at a depth of 2mm, and The resulting excavation shall be clean, free from scale and have a contour to permit ease in repair welding, and The repair groove shall be examined, using magnetic particle inspection to ensure that all defects are removed.

NDE and visual inspection for piping should be performed in accordance to ASME B 31.3 and NDE procedure.

All repairs and initial NDE will be completed prior to stress relieving of the pipe spools.

The surface of repair welding will be cleaned thoroughly before welding in accordance with applicable WPS.

Prior to repair welding, preheating around the repair area will be as per the approved WPS. Repair welding shall be performed in accordance with approved piping weld repair procedure and WPS.

7.12.      Protection and storage of pipe spools in pipe stock yard.

Upon delivery of pipe, checks will be made to ensure that all end covers are in place to prevent ingress of dirt and moisture.

After final completion of carbon spool fabrication, carbon spools will be transferred to the painting area. Before transfer to painting area, spools should be blown thru or internally swabbed to remove contaminants.

After completion of painting, the spools shall be stored on wooden support. For preservation, all flanges and gasket surfaces shall be adequately protected e.g by plywood, plastic caps or equivalent methods before moving the pipe spools.

The Production Department will sort and select the spool as per the line system in order to install the spools on the module conveniently.

After completion of fabrication, stainless steel are transferred to the pipe stock yard directly and segregated from C.S spools.

Spools for installation; all pipe ends will be protected by plywood or equivalent methods attached to flanges.

All threaded nipples and bosses should be protected using waterproof tape or equivalent material to prevent damage to the threads.

7.13.      Painting

Painting for piping shall be performed in accordance with the approved Painting Procedure for onshore equipment

7.14.      Inspection

Inspection will be done in accordance with the Company specification and the approved Inspection and test plan for shop fabrication of above ground piping.

8.     DOCUMENTATION

All relevant documents shall be applied the latest version.

All relevant documents such as AFC drawing, method statement, ITP and HSE presentation shall be maintained at the work site office.

The inspection and test record or check list verified by QA/QC inspector shall be maintained in QA/QC office.

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