GE (N) P/TOKEN- 44 OF 2021-2022 PETTY REPAIRS, DAY TO DAY MAINT OF KAHUN ROAD , SAPPER LINE, COYAJI MARG, 6 QG, 16 QG, TEST AUDIT COLONY, COMMAND HOUSE, COS HOUSE , MAYO ROAD AND CERTAIN MISC WORKS IN THE AREA OF AGE B/R (C)UNDER GE (NORTH) PUNE

Amount

Supply and fixing in repair PVC lid for poly water storage tanks of capacity 500/1000 litres including PVC hinges and PVC locking both complete all as specified.

Cleaning and removing all scale and dirt, etc., from tanks and mouth of circulating pipe etc. including disconnecting existing tanks, setting aside, reconnecting and refixing in position after cleaning exc. 250 & n. exc. 500 litres capacity of tank complete all as specified.

Cleaning and removing all scale and dirt, etc., from tanks and mouth of circulating pipe etc. including disconnecting existing tanks, setting aside, reconnecting and refixing in position after cleaning exc. 500 & n. exc. 1000 litres capacity of tank complete all as specified.

Supply and fixing in repairs 20 mm bore float valve of high pressure PTMT with epoxy coated aluminuim rod and high density plastic ball screwed for iron pipe and fixed complete all as specified . (Minimum weight 210gms)

Supply and fixing in repairs 15 mm bore float valve of high pressure PTMT with epoxy coated aluminuim rod and high density plastic ball screwed for iron pipe and fixed complete all as specified . (Minimum weight 142gms)

Labour only for opening of air locks in toilets /baths and kitchen water pipe line but excluding fittings complete all as specified.

Supply and fixing in repairs brass spindel of 15mm size any type and in any position complete all as specified.

Supply & Fix rotational moulded polyethylene water storage tank 3 layer white colour water tank , non- toxic effect, algea formation protection (made from Virgin grade of polyethylene material which is duly stabilized with anti-oxident Plastic) of capacity 500 litres, (cylindrical vertical one piece moulded with closed top), the internal and external surfaces of tanks are smooth, clean and free from any hidden internal defects, hoisted and fixed in position including S & F necessary GI fittings, inlet/outlet washout, overflow pieces long nipples, checknuts & washer, 20 mm dia ball valves high pressure of PTMT with epoxy coated Aluminum rod & high-density plastic ball (Minimum weight 210gms) and 20 mm bore brass stop cock, high pressure with crutch or butterfly handle etc complete including dismantling existing water tank all as specified and directed.

Supply & Fix rotational moulded polyethylene water storage tank 3 layer white colour water tank , non- toxic effect, algea formation protection (made from Virgin grade of polyethylene material which is duly stabilized with anti-oxident Plastic) of capacity 1000 litres, (cylindrical vertical one piece moulded with closed top), the internal and external surfaces of tanks are smooth, clean and free from any hidden internal defects, hoisted and fixed in position including S & F necessary GI fittings, inlet/outlet washout, overflow pieces long nipples, checknuts & washer, 20 mm dia ball valves high pressure of PTMT with epoxy coated Aluminum rod & high-density plastic ball (Minimum weight 210gms) and 20 mm bore brass stop cock, high pressure with crutch or butterfly handle etc complete including dismantling existing water tank all as specified and directed.

S&F 15mm bore tubes medium grade galvanized ISI marked with all fittings short pieces and fixed complete to walls, floor, ceiling etc all including taking down existing G I tubing as specified.

All as per Srl item No 10 here-in-before, but taking down and fixing only

S&F 20mm bore tubes medium grade galvanized ISI marked with all fittings short pieces and fixed complete to walls, floor, ceiling etc all including taking down existing G I tubing as specified.

All as per Srl item No 12 here-in-before, but taking down and fixing only

M&L cutting chases pinning in brick work for concealed water tubing etc. and making good to facings where required and pointing in cement motar 1:3, cutting n.exc. 10cm girth all as specified.

S&F in repair vitreous China squatting pan Orissa pattern size 580 x 440mm white with integral foot rest ( excluding flushing cistern and flush pipe), including P-trap (PVC) 100 mm dia., connection to flushing pipe, anti-syphonage pipe complete including making good to floor all as specified.

S&F in repairs Vitreous China wash down water closet pan (pedestel pattern) white including trap, connection to drain (outgoing pipe) and to flushing pipe, anti-syphonage pipe, including PVC jet for Pedestal pattern pan including 450/600mm long PVC connection including PTMT nuts and plastic water closet seat of white in colour, closed pattern with flat bottom, and cover and mild steel chromium plated or aluminised hinging device etc complete all as specified.

S&F in repair vitreous china wash hand basin white of bowl size 550mm x 440mm including waste coupling and PVC waste pipe 32mm dia, pillar tap cast copper alloy with capstan heads chromium plated fancy type for 15 mm bore pipe, including M S brackets complete all as specified.

S&F in repair Vitreous china Urinal, Half stall type, white with waste pipe and CP brass spreader complete including providing and fixing plugs, bedding urinal against wall in cement mortar 1:2, securing urinal to plug with and including 60mm long brass screws, pointing around urinal back in cement; flush pipe, grating and union for discharge pipe including brass CP urinal spreader for fixing with 15 mm dia pipe complete all as specified.

S&F in repair 10 ltr capacity PVC valveless syphonic action type flushing cistern low level white with inlet ball valve float and handle including brackets and PVC flushing pipe of polyethylene of low or high density or PVC 32mm dia complete all as specified.

S&F in repair PVC connection 15mm bore size with two nuts and washers of PTMT, of length 450mm all as specified.

S&F in repair PVC connection 15mm bore size with two nuts and washers of PTMT of length 600mm all as specified.

S&F in repair Cabinet mirror plastic body for toilet of size 350x450mm with 4mm thick looking mirror complete all as specified.

S&F in reapir Cabinet mirror plastic body for toilet of size 400x500mm with 4mm thick looking mirror complete all as specified. Make : Prayag CAT PART No. 554 or equivalent of make as per Appx 'A' as approved by GE.

S&F in repair Sinks with drainage board made of stainless steel 1 mm thick kitchen or laboratory with plugs, washers and wastes, including 32mm dia waste pipe and CP grating and bedding in cement mortar to dwarf wall or including fixing cantilever brackets and connecting union to pipe overall size 914mm x 460mm x 203 mm, bowl size 405mm x 354mm x 203mm all as specified. Make Prayag Cat Part No. 1239D or equivalent of make as per Appx 'A' as approved by GE.

S&F in repair Sinks without drainage board made of stainless steel 1 mm thick kitchen or laboratory with plugs, washers and wastes cappling, including 32mm dia waste pipe and CP grating and bedding in cement mortar to dwarf wall or including fixing cantilever brackets and connecting union to pipe overall size405mm x 460mmx 203mm, bowl size 405mm x 354mm x 203mm all as specified. Make: Prayag Cat Part No 1216D or equivalent of make as per Appx 'A' as approved by GE.

S&F in replacement stainless steel plate rack of size 609mm X 609 X 254 mm all as specified CAT PART NO:- P-310 of Pryag or equivalent of make as per Appx 'A' as approved by GE.

S&F in replacement stainless steel plate rack of size 609mm X 762 X 254 mm all as specified CAT PART NO:- P-330 of Pryag or equivalent of make as per Appx 'A' as approved by GE.

S&F in replacement stainless steel plate rack of size 609mm X 914 X 254 mm mm all as specified CAT PART NO:- P-336 of Pryag or equivalent of make as per Appx 'A' as approved by GE.

S&F in replacement stainless steel plate rack of size 787mm X 914 X 254 mm all as specified CAT PART NO:- P-348 of Pryag or equivalent of make as per Appx 'A' as approved by GE.

Supply and fix in repair for glass shelf 450mm X 150mm X 8 mm thick with chromium plated railing fixed with and including chromium plated brackets complete all as specified and as directed.

Supply and fix in repair for corner glass shelf of size 300mm dia and 8mm thick with chromium plated railing, fixed with and including chromium plated bracket complete all as specified and as directed.

Supply and fix in repair for corner glass shelf of size 200mm dia and 8mm thick with chromium plated railing, fixed with and including chromium plated bracket complete all as specified and as directed.

Supply and fix in repairs vitreous china wash down floor mounted coupled water closet with PP soft close seat cover, hinges, fixing accessories and accessories set, size 410x720x800mm, S trap 250mm, flushing cistern with cistern fittings complete all as specified and as directed. Make :- Jaquar Cat No. VGS-WHT-81751 S (Bowl) and VGS-WHT-81201 (Cistern) or equivalent of make as per Appx 'A' as approved by GE.

S&F in repairs stainless steel peg set of five pegs, fixed/welded/soldered on stainless steel base plate of size 300mmx30mmx2.5 mm and fixed with stainless steel screws, rowel plugs as per the sample approved by the Engineer-in-charge complete all as specified and directed.

Supply and fix in repairs for hand shower chromium plated (health faucet) 15 mm bore, (ABS body) with 8mm dia. 1.20 metre long spirochrome flexible tube & wall hook, Cat No. ALD-587 of make Jaquar or equivalent of make as per Appx 'A' as approved by GE. complete all as specified and as directed.

S & F in repair brass Chromium plated soap dish , fixed to wall with CP brass screws, all as specified and directed. Make: Prayag Cat part No: BA-25 or equivalent of make as per Appx 'A' as approved by GE.

S & F in repair Brass Chromium plated towel rail all as specified and directed. Make: Prayag Cat part No: BA-10 or equivalent of make as per Appx 'A' as approved by GE.

S&F in repair Brass Chromium plated towel ring all as specified and directed. Make: Prayag Cat part No: BA-11 or equivalent of make as per Appx 'A' as approved by GE.

S&F in repairs bib taps suitable for 15mm bore pipe long body with flange fancy type brass CP with, Capstan head screwed down screwed for iron pipe or brass ferrule quarter turn complete all as specified. Cat Part No 8508 of Prayag Mist SERIES or equivalent of make as per Appx 'A' as approved by GE.

S&F in repairs Pillar taps Swan Neck suitable for 15mm bore pipe long body fancy type brass CP with Capstan head screwed down screwed for iron pipe or brass ferrule quarter turn complete all as specified. Cat Part No 8514 of Prayag Mist SERIES or equivalent of make as per Appx 'A' as approved by GE.

S&F in repairs Pillar taps suitable for 15mm bore pipe long body fancy type brass CP with, Capstan head screwed down screwed for iron pipe or brass ferrule quarter turn complete all as specified. Cat Part No 8502 of Prayag Mist SERIES or equivalent of make as per Appx 'A' as approved by GE.

S&F in repairs, chromium plated bib cock with wall flange quarter turn complete all as specified and as directed. Cat No. FUS-29037 of make Jaquar ‘Fusion' series or equivalent of make as per Appx 'A' as approved by GE.

S&F in repirs wall mixer brass chromium plated quarter turn with provision for over head shower with 115 mm long bend pipe on upper side connecting legs and wall Flanges suitable for fixing with GI pipes 15mm dia complete all as specified and as directed. Make: Jaquar Cat Part No FUS- 29273UPR FUSION SERIES or equivalent of make as per Appx 'A' as approved by GE.

S&F in replacement angle stop valve with flange quarter turn chromium plated cast copper alloy ISI marked, high pressure screwed down complete all as specified. Make: Jaquar Cat Part No FUS- 29053 FUSION SERIES or of equivalent make as per Appx 'A' as approved by GE.

S&F in repairs Two Way bib taps with wall flange quarter turn suitable for 15mm bore pipe long body fancy type brass CP, screwed down screwed for iron pipe or brass ferrule complete all as specified. Make Jaquar Cat Part No FUS-29041 FUSION SERIES or equivalent of make as per Appx 'A' as approved by GE.

S&F in repair cast copper alloy CP shower arm 225mm long with flange complete all as specified and directed by Engr-in-charge. Make : Prayag: Cat Part No BOS-49 or equivalent of make as per Appx 'A' as approved by GE.

S&F in repair brass chromium plated shower rose 200 mm size square (without arm) with swivel joints including fixing arm/ pipe all as specified. Make Prayag: Cat Part No BOS-42 or equivalent of make as per Appx 'A' as approved by GE.

S&F in repair Toilet paper holder of stainless steel, all as specified and directed. Make: Prayag Cat part No: BA-48 or equivalent of make as per Appx 'A' as approved by GE.

Supply and fixing in repairs bib tap standard of PTMT any colour 15 mm bore minimum weight 90 gram ISI Marked.

S&F in repair 15 mm bore Stop valves, cast copper alloy, screwed down, high pressure, with crutch or butterfly handle, screwed both ends for iron pipe or for unions & fixed all as specified.

S&F in repair 20 mm bore Stop valves, cast copper alloy, screwed down, high pressure, with crutch or butterfly handle, screwed both ends for iron pipe or for unions & fixed all as specified.

Supply and fixing in repairs 32 mm bore PVC flexible pipe for wash hand basin complete all as specified .

Supply and fixing in repairs 40 mm bore PVC flexible pipe for sink complete all as specified .

S&F in repairs waste fittings, brass,chromium plated for glazed ware sink/basin etc, size 32mm with long screwed shanks and fly-nuts, flange end bedded in red lead cement and other end fixed

S&F in repairs waste fittings, brass,chromium plated for glazed ware sink/basin etc, size 40mm with long screwed shanks and fly-nuts, flange end bedded in red lead cement and other end fixed

S&F in replacement 100mm bore PVC (SWR) floor trap plain with CP grating including jointing with solvent cement to waste pipe fixed in cement concrete type B-1, 1:2:4, all as specified.

S&F in replacement 75mm bore PVC (SWR) floor trap plain with CP grating including jointing with solvent cement to waste pipe fixed in cement concrete type B-1, 1:2:4, all as specified.

S&F in repair grating round 75 mm size of stainless steel with/without hole all as specified.

S&F in repair grating round 100mm size of stainless steel with/without hole all as specified.

Taking down shutters of any description area exc 1 Sqm but not exc 2 Sqm each and refixing in same opening including easying adjusting and refixing builders hardware as required including renewal of unserviceable screws, welding etc.complete all as specified. (Renewal of builder's hardware if specially ordered shall be measured and paid for separately)

Supply and fixing 3mm thick sheet glass ordinary quality in any type of frames and glazing with oil putty (or beading) in square n. exc. 0.5 Sqm in each pane including hacking out old broken glass from wooden/steel frames complete all as specified.

All as per item No 62 above but figured glass complete all as specified.

Removing existing glass from window panes in which oil putty and MS pins are damaged and making good by providing oil putty and MS Pins including cleaning the glass panes and fixing back in position Complete all as specified .

Supply and fixing aluminium door seal up to 1200mm length best quality complete all as specified .

Supply and fixing in repairs 150mm size mild steel, ordinary rat tail rod pattern spring (helical door spring) with roller and roller plates including welding to angle iron plate or chokhats as required and as specified.

S&F in repair, 300mm, Mild steel spring for door, ordinary rat tail rod pattern springs, including roller and roller plate complete all as specified.

S &F in repair Stainless steel wire cloth, 0.36mm nominal dia of wire & average width of aperture 1.40mm & fixed with stainless steel wire staples all as specified & directed.

S&F in repair Stainless steel butt hinges 100mm complete all as specified and directed. NOTE :- All screws shall be self tapping chrome plated and length of screw not less 38 mm complete all as directed and specified.

S&F in repair floor door stopper of Stainless steel body and tongue 135 mm anodised with hard drawn steel spring fixed in floor complete all as directed and specified.

S&F in repair Drapery curtain rod of stainless steel 25mm dia complete with stainless steel brackets and side caps fixed in position by drilling holes in walls and fixed the brackers with rawl plug and steel screw compete all as specified.

M&L for repair to Aluminium door/windows of any description area exc 1 Sqm but not exc 2 Sqm each, taking off from present position and refixing in the same position after tightening ,easing the section as required, including fitting the rubber packing aluminium snap beading, re-setting floor/ hydraulic spring etc all as specified .

M&L for repair to Aluminium door/windows of any description , area exc 2 Sqm each, taking off from present position and refixing in the same position after tightening ,easing the section as required, including fitting the rubber packing aluminium snap beading, re-setting floor/ hydraulic spring etc all as specified .

S&F in repairs, double action floor spring hydraulically regulated, made up of minimum 1.25mm thick aluminium alloy sheet foundation box, main body with stainless steel cover, governing pivot made of brass, other parts made of mild steel heavy duty and fixed including taking down aluminium door shutter and refixing complete all as specified

S&F in repair Dead lock, vertical type 4 lever size 65 mm mild steel body with duplicate keys including key hole with fixing bracket complete all as specified.

S&F in repair mild steel body lock, vertical type, for cup board 65mm size Grade-I, 4 levers with duplicate keys including key hole with fixing bracket complete all as specified.

S&F in repair aluminium die cast body Door closer hydraulically regulated designation No 2, universal type suitable for door shutter of 701 to 850 mm in width and of weight between 36 to 60kg ISI Marked complete all as specified.

S&F 5.00mm thick glass fixed with rubber packing aluminium snap beading and metal pins in skelton shutters of doors and windows including solar control film 25 micron reflective type stick to glass panes as per manufactures instructions including hacking out old broken glass from frames complete all as specified.

Material and labour for brickwork with fly ash bricks, straight or curved on plan exc 6m mean radius, built in CM (1:6) including demolition of existing brick work built in CM complete all as specified and as directed.

All as above item No 82 here in but except bricks.

M&L for 15mm thick cement plaster in CM 1:4 on bricks or concrete surfaces finishing the surfaces even and smooth without using extra cement complete all as specified.

M&L for 15mm thick cement plaster in CM 1:6 on bricks or concrete surfaces finishing the surfaces even and fair and provision of sagol finish with two coats of oil bound distemper of any tint over a coat of alkali resistant primer all as specified.

Rendering 15mm thick cement plaster on faces of brick work or concrete surfaces in cement mortar (1:6) finished even and fair and provision of sagol finish including taking down existing plaster with two coats of oil bound distemper of any tint over a coat of alkali resistant primer all as specified and directed.

M&L for 15mm thick cement plaster in CM 1:4 on bricks work or concrete surfaces finishing the surfaces even and smooth without using extra cement including taking down existing plaster all as specified.

Material and labour for roughning of damaged irregular surface of old concrete by picking sweeping cleaning and washing with water and rendering on surface of chajjas, roof projections ceiling facia etc. 15mm thick in cement mortar (1:4) over cement slurry thick coat @ 3 Kg/Sqm making the surface even & fair followed by 5 mm thick rendering in CM 1:3 finished even and smooth without using extra cement including making of drip course as required complete all as specified and as directed. (Upto height of 15 Metres). Note: Rate for form work shall be deemed to be included in the rate quoted by the contractor

M&L for rendering or plastering work 10mm thick in CM 1:3 as in fascia, chajja, edging of chajjas, ceiling and roof projections etc, including taking out pealed off plaster / concrete and making the line in true shape and finishing the surface even and smooth without using extra cement complete all as spcified .

Material and labour for preparation of new plastered surface of any description and appying two coats of 100% acrylic exterior emulsion paint over a coat of primer complete all as specified and as directed.

M&L for Cement concrete 1:3:6 type C-2 (using 40mm graded stone aggregate) as in plinth protection, 75mm thick and finished even and smooth without using extra cement, including demolition of existing cement concrete complete all as specified and as directed.

M&L for 40mm thick Cement concrete 1:2:4 type B-2 (using 20mm graded stone aggregate) as in Floor, finished even and smooth without using extra cement, including demolition of existing cement concrete all as specified and as directed.

Supply only glass dividing strips 3mm thick, 38mm wide and inserted in position to conform to design complete all as specified & directed.

M&L non-skid coloured ceramic tiles 7 to 8mm thick (square/ rectangular) area of each tile exceeding exc. 0.06 sqm but not exc. 0.11 sqm as in floor etc., set and jointed in neat cement slurry and pointed in white or coloured cement to match the tiles including 15mm thick screed bed or bedding layer in CM 1:4 and demolition on existing tiles of any description complete all as specified.

M&L coloured Vitrified Double Charged tiles 10mm thick (square/rectangular) area of each tile exceeding 0.18sqm but not exceeding 0.36sqm as in floor etc., set and jointed in neat cement slurry and pointed in white or coloured cement to match the tiles including 15mm thick screed bed or bedding layer in CM 1:4 and demolition of existing tiles of any description complete all as specified.

M&L glazed ceramic coloured tiles of size 450 x 300 x 7mm thick, on vertical surfaces of walls such as skirting dado etc. set and jointed in neat cement slurry and pointed in white or colour cement to match including 10mm thick backing plaster in cement mortar 1:3 and demolition of existing tiles of any description complete, all as specified.

Material and labour for machine cut cudappah stone slab 20-25 mm thick as in lintels, shelves, vertical surface, fixed with neat cement slurry mixed with pigment to match the shade of the slab or arldite, including rubbing and polishing and demolition of existing stone of any description complete all as specified and as directed

Material and labour for 20mm thick granite (of any type) work ( table rubbed and polished) in steps , jambs. pillars, window cills, cooking platforms and like in cement mortar (1:4), pointing in white cement (1:2) using marble dust with admixture of pigment to match with shade of granite including demolition of existing stone of any description complete all as specified and as directed.

Labour only for full round moulding to 18 to 20mm thick granite slab complete all as directed.

S&F in repair GI spout pipe medium grade 50mm bore dia of length 450mm set in PCC 1:4:8 type D-2 (using 40mm graded stone aggregate) and making good the external portion with CM 1:3 with and including water proofing compound @ 200 ML per bag complete all as specified .

S&F in repair Stainless steel Hasp and staple, safety type of 100 mm long including bolt to hinge plate and fixed with Self Tapping screws all as specifed

S&F in repair, 40mm dia, cupboard knobs fixed with nut, screw & washer of mild steel, bright finished complete all as specified.

Supply and fix in repairs for Garware Sun Control polyster film, 50 micron, reflective type fixed on existing glass panels complete all as specified and as directed.

Removing excavated soil, debrises obtained from demolition from various locations (other than this work) from site to outside MOD land complete all as as directed. The location at out side MOD land for disposal shall be located by the contractor himself).

S & F in repair HDHMR (high density high moisture resistance) board manufactured with hard wood, prelaminated both sides white in colour 18mm thick water resistant, termite resistant, duly edge banded with PVC taping 0.8 mm thick, cut to shape & size as in shelves, kitchen cabinets complete all as specified and directed. Make: Action tesa, Century, Kitply

S & F in repair 18 mm thick UV coated exterior grade MDF board duly edge banded with 0.8 mm thick PVC taping, as in cup board shutters, design and colour shall be as approved by GE complete all as specified and directed. Make: Action tesa, Century, Kitply

S&F in repair white table top Basin of size 450mm x 300mm x 105mm fixed in position including fixing of tap, waste pipe etc complete all as specified and directed. Make: hindware Model Kathy mini Cat Part No. 91059 or equivalent of makes as per Appx 'A' as approved by GE.

S&F in repair PVC connection pipe 15mm bore of length 450mm for hot water with two nuts and washers of PTMT, complete all as specified and directed.

S&F in repairs 110mm dia PVC (SWR) grade single socketed pipes in any length with rubber ring joints fixed to walls complete all as specified.

S&F in repairs 75mm bore PVC (SWR) grade single socketed pipes in any length with rubber ring joints fixed to walls complete all as specified.

S&F in repairs PVC (SWR) bends of any radius of 110mm bore complete all as specified.

S&F in repairs PVC (SWR) bends of any radius of 75mm bore complete all as specified.

Material and labour for repairs to leakage GI pipe of size 15 mm bore including cutting out GI pipe at both ends and jointing with provision of new fittings such as union/ socket etc. complete all as specified and as directed.

S&F in repairs for 6mm thick asbestos cement plain building board as in false ceiling fixed to timber frame work with screws at a height upto 6m includubg two coats of synthetic enamel paint over a coat of primer complete all as specified and as directed.

M/L 2nd class hard wood plain fillets, square, rectangular or triangular in section, clean sawn, secured with nails or brads of sectional area exc 3 sq cm and not exc. 6Sqmcm as in ceiling /roof including 02 coats of synthetic enamel paint over a coat of pink primer complete all as specified and directed.

Dismantling single layer Mangalore pattern or similar tiles in roofing complete all as directed.

Material and labour for Roof tiles Mangalore pattern interlocking at side joints, laid dry complete all as specified and as directed.

S&F stainless steel auto close/ hydraulic hinge suitable for shutter of not exc 0.50 sqm area complete all as specified and as directed.

Note : 1. Rerformance security:- Refer Condition 22 of Special Conditions 2. Quoted Contract Sum shall be arrived at after deducting the amount of Credit Schedule (refer Schedule of Credit in pdf form for quantity, rate and amount etc.) for old unserviceable materials retrieved from site.

Conceptice Enterprises

J P ASSOCIATES

M/S OMSAI ENTERPRISES

K.S.JITE AND SONS