DRE125B182 Replacement of Old Drinking water Tank area of Digboi Refinery, Digboi

Mech services for Dismantling of Tank

DISMANTLING OF FLOATING/FIXED ROOF TANK Retrieving all existing fittings, instruments, foam seals, side railings, dismantling of damaged corroded shell / roof of welded oil storage tank by gas cuttings/cold cutting or any other suitable means as directed by engineer in charge and transporting them to storage point/ scrapyard as designated without disturbing / damaging any portion of existing piping, equipment, tank and complete in all respect with all labour, tools, machineries, supervision etc. Requirement of heavy equipment to be envisaged by Engineer-in-Charge and to be arranged separately, if required, as the same in not included in the item rate. Requirement of scaffolding to be envisaged and decided by Engineer-in-Charge as per site requirement and scaffolding item to be paid separately.

Bottom: Dismantling of bottom (Annular) plates completely: Dismantling of bottom (Annular) plates, job involves cutting of bottom plateand shell to bottom plate welding, jacking of shell. And also cutting of annular to sketch plate cutting. Dismantling of bottom (sketch) plate: Dismantling of bottom (sketch) plates by gas cutting and roof to be properly supported and handing over to civil maintenance for tank bottom foundation repair. Shifting of roof support as and when required to facilitate repair/ relaying of foundation. Note: The measurement of dismantling, shall be calculated based on actual area laid of complete bottom sketch plate minus 10% corrosion correction.

Roof : Dismantling of complete roof/ structural/ shell/ course/ truss: Retrieving all the existing fittings, instrumentations, side rails, etc. by gas cutting/ cold cuttings directed by Inspection/ site engineer. And shifting of dismantled roof plates, structural etc. to ground (only scrap) to transport and kept properly the same in scrap yard after taking/ recording weight. During the entire job all safety norms to be followed in any case. Note: The measurement of dismantling, shall be calculated based on actual area laid of complete roof plate minus 10% corrosion correction.

Shell: Dismantling of shell course retrieving/ removing of shell plates. Retrieving all existing manholes/ nozzles/ fittings, instrumentation, side rail etc. by gas cutting/ cold cutting as directed by EIC. Shifting of all scrap to scrap yard/ designated location as per EIC after taking and recording weight. During the entire shifting job, all safety norms to be followed. Note: The measurement of dismantling, shall be calculated based on actual area of shell plate replaced minus 10% correction corrosion.

DISMANTLING OF CARBON STEEL/ALLOY STEEL PIPING BY HOT WORK (INSULATED / UNINSULATED) Dismantling and removal of above ground, overhead or under ground (upto height depth of 5m) redundant/ steam traced / insulated/ uninsulated piping of carbon steel / alloy steel by gas cutting or by grinding from various locations such as pipe racks, columns, pump house, vessels, heaters, heat exchangers, desalter etc. including removal of insulation material, all on line instruments, fittings, flanges, valves, vents, drains, branching etc.; lowering down the same to ground level with due care so that no other piping, equipment, machinery etc. is damaged; cutting into pieces if required; segregating for salvaging useful fittings such as bends, flanges, valves, instruments etc. by unbolting, gas cutting, cold cutting etc.; transporting and stacking the salvageable useful materials to workshop / instrument workshop/ store or as per the direction of the Engineer-in-Charge and shifting the scrap pipes etc. to scrap yard or any other location within refinery premises and completing the job as per the instructions of Engineer-in-Charge. Scope also includes supplying of all types of tools and tackles, lifting arrangements, equipment, machineries, all consumables and labour etc. to complete the work in all respects including area preparation, taking clearance for hot jobs, blinding and de-blinding, area cleaning after completion of work, arrangement for flushing wherever required as directed by the Engineer-in-Charge. NOTE : 1. Proper safety arrangements for carrying out the job is under contractor's scope and the same has to be complied with as per the d irections of the Engineer- in-Charge. 2. Salvaging of useful fitting from redundant pipe, if done, will be paid under separate item. 3. Civil works (excavation and back filling) for underground dismantling shall be paid separately. Note: For job execution beyond 5 Mtr. elevation above or below ground level, rates are to be escalated by 10% for every 5 meters. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately.

REMOVAL OF FLANGED / RTJ VALVES/ LEVEL TROLL/ FIRE HYDRANT/ MONITORS/ SAFETY VALVES ETC.

Mech services for Execution of Pipings

CARBON STEEL PIPING JOINTS FOR NON-HYDROCARBON SERVICE (WITH WELDING ELECTRODE E-6013) Transportation of all piping items from owner's storage points to work site and / or pre-fabrication yard and to site after pre-fabrication; cutting, grinding, edge preparation of pipes and fittings, like flanges, elbows, tees, reducers etc. to match the mating edges of different thickness; fit-up, bending, welding using approved welding electrodes as per owners quality requirements etc. as per codes/specifications, drawing etc., threading, laying, erection and alignment of pipes upto a height of 5 meters on sleepers, pipe racks etc. or upto 5 meters depth in trenches, anchoring wherever required, connecting with equipment, nozzles, steam traps, strainers, orifice assemblies (including tapping upto first block valve), spray nozzles, rotameters; tapping for instrument connections like pressure gauges, thermowells, sample connections, vents, drains etc. including fixing of all types of SW valves, gaskets, nuts and bolts, all inline instruments, elbows, tees, flanges, reducers, full coupling or half coupling, reinforcement pads, earthing strip wherever required; welding prefabricated shoes and supports (including alignment) as per the drawings including preparation of small bore isometrics upto 1.5 inch NB, specifications, codes etc. and as per the instructions of the Engineer-in-Charge to his entire satisfaction. The scope also includes supplying of all types of tools and tackles, lifting arrangements, equipment, machineries, all consumables and labour etc. to complete the work in all respects including area preparation for hot jobs, area cleaning after completion of work, flushing wherever required, cleaning of pipes externally off all foreign materials like weld beads, clamps fixtures etc. used in fabrication as directed by the Engineer-in-Charge. NOTE : 1. Proper safety arrangements for carrying out the job is under contractor's scope and the same has to be complied with as per the d irections of the Engineer- in-Charge. 2. For job execution beyond 5 Mtr. elevation above or below ground level, rates are to be escalated by 10% for every 5 meters. 3. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately. 4. Piping up to 40mm NB shall be fully TIG welded. Piping size 50mm NB & above, where TIG welding is used for root run only, the rates to be escalated by 15% and where TIG welding is used for entire joints the rates to be escalated by 20%. 5. Payment of tapping points will also be made extra on joint basis, as the measurement is on joint basis.

100 mm NB, Schedule upto 40

150 mm NB, Schedule upto 40

200 mm NB, Schedule above 20 but upto 40

250 mm NB, Schedule above 20 but upto 40

300 mm NB, Schedule above 20 but upto 40

DYE PENETRATION TEST FOR PIPING WORKS Performance of dye penetration test including supply of all necessary materials, penetrant, developer etc. along with all equipment’s, labour, for carrying out the work as per specification and direction of engineer -in-charge at all elevations. Test has to be carried out in all metallurgy the test has to carry out on all schedules of pipes.

For Pipes (Per Inch Dia)

RADIOGRAPHY OF PIPING WORKS Performance of radiographic inspection on all type and sizing of piping/ pipe fittings in position at all heights inclusive of providing sources, film, chemicals, and all necessary equipment, consumables etc. complete in all respect as per specification and instruction of the Engineer-in-Charge.

For Pipes (Per Inch Dia)

HYDROTESTING OF GATE/GLOBE/ CHECK/ BUTTERFLY/ PLUG VALVES Job involves collection of valves from stores, go-down etc. transportation to testing bay or contractors' own premises, test the val ves for seat, body and backseat at recommended pressure including cleaning and greasing, transport back as per instruction and satisfaction of the Engineer-in-Charge. Requirement of heavy equipment to be envisaged by Engineer in Charge and to be arranged separately, if required, as the same in not included in the item rate.

HYDROTESING OF PIPING WORKS Hydrostatic testing of pipelines at the specified pressure including blinding/deblinding, fabrication and fixing of testing connections, pressure gauge installation. Hose pipe connection and making all other arrangements as required and dewatering, flushing and boxing up after fixing proper gaskets with supply of all labour, tools andtackles, instruments and instruction of the Engineer-in-Charge. The job has to be carried out at all elevations. In case of Hydrotest Failure, Re-testings shall be carried out at no extra cost. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately.

INSTALLATION OF FLANGED / RTJ VALVES/ LEVEL TROLL/ FIRE HYDRANT/ MONITORS/ SAFETY VALVES ETC. Transportation of all types of flanged / RTJ valves, level troll, fire hydrant, monitor, gaskets, nut bolts etc. either from owner's storage point to workshop and/ or worksite. Installation at ground level i.e. up to a height of 5 meters on sleepers, pipe racks etc. or up to 5 meters depth in trenches including assembly of valve accessories, cleaning of flanged faces, lapping of RTJ rings, providing new gasket (IOCL supplied) or cutting of new gaskets to proper size if required, placing the gaskets / RTJ ring properly, installation in position with correct direction, tightening of studs, providing earthing protection by way of fixing strips, complete the job in all respect as per drawings and direction of the Engineer-in-Charge, including all labour, tools, tackles, consumables and supervision etc. and tightening of the gland to ensure zero leak including hot bolting wherever applicable. For job execution beyond 5 Mtr. elevation above or below ground level, rates are to be escalated by 10% for every 5 meters. Requirement of heavy equipment (other than transportation) to be envisaged by Engineer in Charge and to be arranged separately, if r equired, as the same in not included in the item rate. Requirement of scaffolding to be envisaged and decided by Engineer in Charge as per site requirement and scaffolding item to be paid separately.

For Valves (other than RTJ)

Mech services for Const. of New WaTank

DESIGN SERVICES FOR FLOATING/FIXED ROOF TANKS Preparation and submission of design, drawings and specifications for welded storage tanks with double deck type floating roof/ floating roof with pontoons/ floating cum fixed roof/ fixed roof storage tanks including carrying out modifications/ incorporation of details as required by the owner, preparation and submission of detailed construction drawing including plate cutting details, bottom plate, shell plate, floating roof, structural, sealing devices, all appurtenances, accessories, safety devices, roof drains, nozzle connections etc. preparation and submission of design and detail drawing for the impressed current cable anode system for protection of tank bottom and for the overall earthing scheme for the tanks, preparation and submission of bill of materials complete in all respect in accordance with the contract.

Storage tanks of capacity upto 10,000 KL

MECHANICAL WORKS FOR NEW FLOATING ROOF/ CONE ROOF STORAGE TANKS Transportation of all materials from owner's storage location to worksite, rolling, fabrication, erection and welding of all steel plates for bottom, shell, floating roof, wind girders of all tanks and providing all manholes, nozzles etc. fittings and fixing of all appurtenances, instruments, accessories, sealing devices, safety devices etc. carrying out all structural work and all other work required for the roof structures, pipe supports, stairways, hand rails, landing platforms, rolling ladder and other components of the tanks, earthing of tank parts and overall earthing of tanks as per approved scheme, installation of side entry tank mixers, providing still pipes for anti rotational device, radar type level gauges, temperature measurement and support brackets and structural support for level indicator, providing supports brackets for foam pourer, providing deflector plates at secondary wind girder level for the cooling water, providing nozzles for level alarms including supply of materials, tools and tackles, labour etc. Supplying and providing 200mm diameter roof drains with SS304 inner layer carcass and outer layer of polyamide/Nylon, resistant to sour crude operations, having repetitive lay pattern without any external support etc. including supply of all materials (other than owner supplied materials) appurtenances, accessories, labour etc. required for the work complete in all respect for oil storage tanks in accordance with the tender specification / drawings / stipulations and as per the instructions of the Engineer-in-Charge. Note: The MS plates for bottom, shell, roof, extension plates, reinforcement pads plates for shell manholes, foam dam; structurals; mechanical & instrument equipment & fittings etc. will be supplied by the owner as per drawing and specifications. All other labour and materials etc. shall be arranged by the contractor at his cost. The hydrotest, calibration, Pneumatic test, Radiography, Stress Relieving and other NDT charges, shall be paid in separate item rate. Requirement of heavy equipment to be envisaged by Engineer-in-Charge and to be arranged separately, if required, as the same in not included in the item rate. Requirement of scaffolding to be envisaged and decided by Engineer-in-Charge as per site requirement and scaffolding item to be paid separately.

MECHANICAL WORKS FOR NEW FLOATING ROOF/ CONE ROOF STORAGE TANKS

For Vessels / Tanks (Per Inch)

For Vessel/ tanks etc. (Per Inch)

HYDRAULIC TESTING OF THE TANK The job includes hydraulic testing of the tank to identify leaks including all connected jobs like blinding / de-blinding, temporary piping arrangements to fill in and empty out the water and complete the job in all respect as per direction of the Engineer-in-Charge, including all labour, tools, tackles, consumables, supervision, machineries, instruments (duly calibrated) etc. Repetitive hydrotesting of tank to be carried out if required on account of repair or for roof floatation test as per Inspection requirement. Requirement of scaffolding to be envisaged and decided by Engineer-in-Charge as per site requirement and scaffolding item to be paid separately.

Above 1000 up to 2000 M3

SUPPLY OF CS PLATES

Mechanical Level Gauge

STEEL SCAFFLODING (MATERIALS IN CONTRACTOR'S SCOPE) The job includes supply of all scaffolding materials, transportation to work site, erection of scaffolding at site as per ISMS (IndianOil Safety Management System) Standard-1007 on Scaffold Safety with safest and reliable design. Scaffolding design should consider the worst load combination expected during its service period. The supporting structure should be sufficient in strength, stability, and rigidity; The safety of personnel associated with the erection, alteration, and dismantling of the scaffold; the safety of persons using the scaffold; and the safety of persons in the vicinity of the scaffold to be considered mandatorily. Standard Tags for "Fit for Use" in Green Color and "Not Fit for Use" in Red Color to be fitted on scaffolding as per ISMS Standard-1007. Note: 1. For measurement in SQM: 2 (length + width) X height area covered by the scaffolding is to be taken. 2. Scaffolding measurement to be done by breaking the height into parts as per height slab mentioned below and adopting respective rates against mentioned height slabs.

Above 6 m upto 10 m

Intermediate plate form

PNEUMATIC TEST OF TANK BOTTOM / ROOF The job includes vacuum / pneumatic testing of the tank bottom / roof surface to identify leaks including all connected jobs of blinding, de-blinding etc. and all tools, tackles, consumable, labour, supervision and supply of Air Compressor and complete the job in all respect as per the direction of the Engineer-in-Charge.

PNEUMATIC TEST OF TANK BOTTOM / ROOF

HEAT TREATMENT Heat treatment of shop fabricated for already installed piping / static equipment etc. for joints or other operations wherever required. Heating to be carried out in a furnace or by using an electric resistance or induction heating equipment ensuring uniform temperature attainment at all points of the portion being heat-treated. The portion under heat treatment shall be wrapped suitably under insulation to avoid any harmful temperature gradient. The temperature thus attainted in the portion under heat treatment shall be recorded by means of thermocouples, pyrometer and an automatic temperature recorders suitably calibrated should be employed. The calibration chart of each recorder along with hardness test results shall be submitted to the Engineer-in-Charge for approval. The details of heat treatment such as heating rate, soaking temperature pause period and cooling rate etc. to be carried out as per relevant standards / code as instructed by the Engineer-in-Charge.

For Vessel & Tanks

CALIBRATION OF TANKS Calibration of the tank as per IS-2007 and IS-2008, preparing the calibration sheets on standard forms showing strapping details, ca lculation details and other relevant details including bottom calibration after taking measurement of dead wood etc. and certified by CPWD or Weights and Measures Department or any other equivalent government authority with all labour, tools & tackles, consu mables, instruments (duly calibrated) and delivery of calibration charts to the Engineer-in-Charge. Fee for calibration of tank to be paid separately as per actuals against valid documents. Requirement of scaffolding to be envisaged and decided by Engineer-in-Charge as per site requirement and scaffolding item to be arranged/ paid separately.

Above 1000 upto 2000 M3

Civ.works for Construction of Ridge tank

Surface dressing of the ground including removing vegetation and inequalities not exceeding 15 cm deep and disposal of rubbish, lead up to 50 m and lift up to 1.5 m: All kinds of soil.

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation, trenches or drains (exceeding 30cm in depth, 1.5m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth, lead up to 50m and for all lift. All kinds of soil.

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan) including dressing of sides and ramming of bottoms, for all lift including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m: All kinds of soil.

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and for all lift.

Excavating, supplying, stacking and filling of local earth (including royalty) by mechanical transport upto a lead of 5km also including ramming and watering of the earth in layers not exceeding 20 cm in foundation trenches, plinth, sides of foundation etc. complete for all lift.

Open timbering over areas including strutting, shoring etc. complete (Measurements to be taken of the face area timbered):

Depth not exceeding 1.5 m.

Depth exceeding 1.5 m but not exceeding 3 m.

Felling trees of the girth (measured at a height of 1 m above ground level) including cutting of trunks and branches, removing the roots and stacking of serviceable material and disposal of unserviceable material:

Beyond 30 cm girth up to and including 60 cm girth.

Supplying and filling in plinth with Jamuna sand under floors, including watering, ramming, consolidating and dressing complete.

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering - All work up to plinth level :

1:3:6 (1 Cement : 3 coarse sand (Zone-III) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources).

1:2:4 (1 cement : 2 coarse sand (Zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources).

"Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete. Note: Extra cement up to 10% of the minimum specified cement content in design mix shall be payable separately. In case the cement content in design mix is more than 110% of the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement. "

All works up to plinth level. : Concrete of M25 grade with minimum cement content of 330 kg /cum

Providing and laying in position specified grade of reinforced cement concrete excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level :

1:1.5:3 (1 cement : 1.5 coarse sand (Zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete up to plinth level:

Thermo-Mechanically Treated bars.

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level:

Thermo-Mechanically Treated bars of grade Fe-500D or more.

Asphalt Sand Anti corrosive layer for Tank foundation areas: Providing and laying Anti corrosive Layer 50mm thick on prepared surface with hot mixing of specified graded sand and bitumen (VG-20 Grade); with 200 degree C in hot mix plant or mechanically operated mixture, transporting the mixed material by tippers and laying the mixed material to achieve the requied level and grade with rolling by rollers, etc, complete as per drawing, specification and directed by Engineer-in-Charges,

Centering and shuttering including strutting, propping etc. and removal of form for :

Lintels, beams, plinth beams, girders, bressumers and cantilevers.

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in:

Cement mortar 1:4 (1 cement : 4 coarse sand).

Brick work with common burnt clay modular bricks of class designation 7.5 in foundation and plinth in:

Cement mortar 1:4 (1 cement : 4 coarse sand).

Half brick masonry with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundations and plinth in:

Cement mortar 1:4 (1 cement : 4 coarse sand).

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in superstructure above plinth level up to floor V level in all shapes and sizes in :

Cement mortar 1:4 (1 cement : 4 coarse sand).

12 mm cement plaster finished with a floating coat of neat cement of mix :

1:3 (1 cement: 3 fine sand).

Structural steel work in single section fixed with or without connecting plate including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Steel work welded in built up sections/ framed work including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required:

In stringers, treads, landings etc. of stair cases including use of chequered plate wherever required, all complete.

In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works.

Providing and fixing hand rail of approved size by welding etc. to steel ladder railing, balcony railing, staircase railing and similar works, including applying a priming coat of approved steel primer:

M.S. tube.

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade-Two or more coats on new work.

Providing and Laying Non-shrink cementitious Grout like Shrinkomp of ACE make/ Conbextra (GP2) of FOSROC or approved equivalent under base plates of steel columns, Machine Foundation, grouting and filling of pockets of foundations and curing including cleaning of pockets proir to grouting application etc. complete as per the technical specifications, drawings, manufacturer' s specifications and instructions of Engineer-In-Charge (Minimum strength 45 N/mm2).

Providing and laying SBR polymer (of approved make @ minimum 2% by wt. of cement used) plain/ reinforced concrete jacket for the structural members e.g. columns, pillars, piers, beams etc. with concrete having minimum characteristic compressive strength [with ordinary portland cement, coarse sand and graded stone aggregate of 10mm maximum size in proportion as per design criteria] with specified average thickness all round existing core of RCC member: Note: Rates shall be for finished surface area of concrete and shall include the cost of making holes in existing slab, if required, for pouring concrete in shuttering mould of jacket and appropriate approved super-plasticiser for rendering concrete as flowable self compacting and SBR polymer but shall exclude cost of reinforcement, bond coat, shear keys, centering and shuttering, strutting, propping etc. (Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding/ tapping with a blunt metal instrument).

100 mm thick in Grade M25 with cement content not less than 330 kg per cum.

Providing and injecting approved grout in proportion recommended by the manufacturer into cracks/ honey-comb area of concrete/ masonry by suitable gun/ pump at required pressure including cutting of nipples after curing etc. complete as per directions of Engineer-in-charge (The payment shall be made on the basis of actual weight of approved grout injection):

Stirrer mixed Acrylic Polymer of approved make @2% of weight of cement used) modified cement slurry made with non shrink compound in concrete/ RCC work.

"Supply of Chime Area Protection system manufactured by M/s Stopaq Europe BV, Netherlands or M/s BELZONA Polymerics or M/s Demech Chemicals or any other equivalent, as per technical specifications, for annular plate of storage tanks at IOCL Digboi Refinery (Assam). Unit of Measurement 'M' shall represent the quantity of material required to seal the annular plate, measured along the circumferential edge of the annular plate of the tank. (The vendor shall take prior approval from EIC / HOD before supply / application of the chemicals/tank boot seal system)"

"Application including high pressure water jet cleaning, drying the area by compressed air, filler material application by injector gun, application of tapes, adhesion test, peel test , supervision in the scope of representative from manufacturer or authorized dealer, site preparation of concrete surface etc. to complete the work in all respect as per specifications and instructions of site engineer. Wrapping materials should be applied in such a way, it should cover the ring beam atleast 2 inch and should cover the annular projection & shell vertical plate atleast upto 20mm or as directed by EIC. Unit of Measurement 'M' shall be measured along the circumferential edge of the annular plate of the tank."

Surface cleaning to Sa 2-1/2 Swedish Specification by Grit/shot blasting (extra over St-2 / St-3 cleaning) by using abrasive materials of size range 16 to 30 (~0.6 to 1.2 mm) mesh like copper grit / shot etc as per relevant standard and direction of Engineer-in-Charge on steel surfaces like storage tanks, columns, vessels, exchangers, chimneys, steel structures and other flat surfaces including pipelines of 350 NB and above diameters in position at all heights including all materials, equipments, tools and plants, consumables, labour etc complete in all respect as directed by Engineer-in-charge but excluding cost of scaffolding. Compressed Air shall be in the scope of contractor (Contractor will have to make his own arrangement for compressor etc. for arranging required air for blasting).

Applying priming coat with ready mixed primer of approved brand and manufacturer at all heights over steel surfaces like structures, columns, pipes, vessels, tanks etc. as per manufacturers specifications and directions of the Engineering-in- Charge; all complete including cleaning the surface using emery papers/ Power tool cleaning such as ST-2 or ST-3 as per requirement, including all material, consumables, tools, tackles, labour etc but excluding Scaffolding. Note- No. of coats mentioned in the SOR items are only indicative and contractor has to achieve rquired DFT by applying more coats (if required) within the relevant SOR item rates.

Inorganic Zinc Silicate primer to achive a minimum DFT of 65-75 microns (one or more coat of 65-75 micron each).

Self priming HB coating primer to achive a minimum DFT of 100- 125 microns (1 or more coat of 100-125 micron)

HB Zinc phosphate coating primer to achive a minimum DFT of 30-35 microns (1 or more coat of 30-35 micron )

HB epoxy finish to achive a minimum DFT of 150-200 microns (Two or more coats of 75 - 100 micron each).

Aliphatic Acrylic Polyester Polyurethane to achive a minimum DFT of 50-75 microns (One or more coats of 50 -75 micron each).

Amine cured solvent free high build epoxy liner to achive a minimum DFT of 400-500 microns (Two or more coats of 200-250 micron each).

Carriage of sand, stone aggregate below 40 mm nominal size by mechanical transport for following leads or part thereof including loading, unloading and stacking all complete as per the direction of the Engineer-in-Charge (The rates will be applicable to net quantities without deduction for voids):

Upto a lead of 1 km.

Lead beyond 1 km but upto 2 km.

Lead beyond 2 km but upto 3 km.

Carriage of bricks including clay bricks, refractory bricks, insulation bricks, calcium silicate bricks, acid/alkali proof bricks and the like by mechanical transport for following leads or part thereof including loading, unloading and stacking all complete as per the direction of the Engineer-in-Charge: Note: Unit of measurement is EACH (EA). Rates provided here are for 1000 nos. of bricks. A set of 1000 bricks is taken as EACH.

Upto a lead of 1 km.

PF/ESI for line item 40

PF/ESI for line item 40

Civ. works Demolition of Exis. structure

Demolishing brick work manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge:

In mud mortar.

In lime mortar.

In cement mortar.

Dismantling C.I. pipes including excavation and refilling trenches after taking out the pipes, manually/ by mechanical means breaking lead caulked joints, melting of lead and making into blocks including stacking of pipes & lead at site within 50 metre lead as per direction of Engineer-in-charge:

Up to 150 mm diameter.

Above 150 mm dia up to 300 mm dia.

Above 300 mm diameter.

Dismantling roofing including ridges, hips, valleys and gutters etc., and stacking the material within 50 metres lead of:

G.S. Sheet.

Asbestos sheet.

Dismantling doors, windows and clerestory windows (steel or wood) shutter including chowkhats, architrave, holdfasts etc. complete and stacking within 50 metres lead :

Of area 3 sq. metres and below.

Dismantling steel work in built up sections in angles, tees, flats and channels including all gusset plates, bolts, nuts, cutting rivets, welding etc. including dismembering and stacking within 50 metres lead.

Demolishing dry brick pitching in floors, drains etc. including stacking serviceable material and disposal of unserviceable material within 50 metres lead.

Demolishing R.C.C. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge.

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge:

Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix).

Carriage of lime, moorum, building rubbish and debris including refractory / insulation debris etc. by mechanical transport for following leads or part thereof including loading, unloading and stacking all complete as per the direction of the Engineer-in-Charge (The rates will be applicable to net quantities after deduction of 20 percent for voids):

Upto a lead of 1 km.

Lead beyond 1 km but upto 2 km.

PF/ESI for line item 60

PF/ESI for line item 60

Electrical services

SITC of LPS

Soil Investigation at Site

Sub-soil Geotechnical Investigation

PF/ESI for line item 10

PF/ESI for line item 90

PF/ESI for line item 20

PF/ESI for line item 20

PF/ESI for line item 30

PF/ESI for line item 30