SPECIAL REPAIRS TO AUDIOMETRY ROOM IN DEPARTMENT

Amount

SCHEDULE 'A' PART I ( B/R ITEMS) Dismantling wall and ceiling boards (POP,fiber, gypsum, pulp, insulation, aluminium etc) or insulation boards/slabs/ blankets, any thickness, including cover fillets/ snap grid etc and making good disturbed surfaces as per existing complete all as specified.

Dismantling wall panelling and similar works of any description and making good disturbed surfaces as per existing complete all as specified.

Taking down chowkat with shutters (without taking off shutters from the frames) area exc 1.5 Sqm but n.exc 4 Sqm each.

Demolition of brick work or stone/boulder masonry, built in cement mortar, including all quoins, arches, pillars etc, but excluding ashlar facings, dressed stone work & precast concrete articles including copings etc.and removing debris outside MD land complete all as specified. Note: The place of disposal shall be find out by the contractor.

M & L for providing and fixing factory fabricated partition wall constructed using Gypsum sheets manufactured by Gypsum India Ltd suitably placed in the existing room to convert the room into Two rooms set up. The wall should include connecting door and observation window as directed. The Partition wall shall be 150mm thickness with 12.5mm thick gypsum boards on both sides encased supported by GI Zinc coated framework consisting of floor channel, vertical studs of size as per manufacturers instructions as per IGL's specifications using conventional hardware. The frame work shall be adequately anchored in the wall/floor as per manufacturers instructions. Acoustic insulation in partition frame work shall be 100mm thick glasswool of designed density, tied to the frame forming high frequency absorbers, for band extended treatments air-gaps should be generated as normally required for ensuring to maintain the acoustic parameters / acoustic characteristics in compliance with the maximum permissible ambient noise levels in Audiometric rooms including providing two coats of oil bond distemper over a coat of alkali resistant primer over putty of thickness not less than 1mm on both sides of the partition wall including necessary builders hardware, adhesives etc complete all as specified and testing after completion as per manufacturers instructions. Make - Acoustic Engineers, A N Enterprises, Hospital Supply Agencies, A M Industries.

M & L for providing and fixing factory fabricated panel based acoustic treatment from 900mm above floor level upto false ceiling level. The Panels are of size 600mm x 900mm x 4mm thick of perforated particle boards as surface material. The panel are formed with highest quality resin bonded slabs of rockwool of 4” (100mm) thickness. Entire treatment is encased supported by framing of 12mm thick plywood BWP using conventional hardware with good acoustical coupling to existing surfaces. Entire treatment is acoustically coupled on existing walls using sound cleats and forming suitable airgaps. These panels are integrated in entire system to achieve acoustical parameters as normally required for ensuring to maintain the acoustic parameters / acoustic characteristics in compliance with the maximum permissible ambient noise levels in Audiometric Rooms including applying two coats of synthetic enamel paint over a coat of primer of approved colour & shade on the outer surface of panel complete all as specified and as per manufacturers instructions . Make: Acoustic Engineers, A N Enterprises, Hospital Supply Agencies, A M Industries.

M & L for providing and fixing factory fabricated panel low frequency acoustic based acoustical treatment up to 900mm from floor level. The Panels are of size 600mm x 900mm having 4mm plywood as surface material. The panel are formed with highest quality resin bonded slabs of glasswool of 4” (100mm) thickness. Entire treatment is encased supported by framing of 12mm thick plywood BWP using conventional hardware with good acoustical coupling to existing surfaces. Entire treatment is acoustically coupled on existing walls using sound cleats and forming suitable air gaps. These panels are integrated in entire system to achieve acoustical parameters as normally required for ensuring to maintain the acoustic parameters / acoustic characteristics in compliance with the maximum permissible ambient noise levels in Audiometric Rooms including providing two coats of synthetic enamel paint over a coat of primer of approved colour & shade on the outer surface of panel complete all as specified and testing after completion as per manufacturers instructions . Make: Acoustic Engineers, A N Enterprises, Hospital Supply Agencies, A M Industries.

M & L for providing and fixing factory fabricated low frequency bass traps at designated corners and centers of walls formed using highest quality resin bonded slabs of Rockwool of 4” (100mm) thickness , 12mm thick plywood BWP of variable thicknesses as a surface material & conventional aluminium builders Hardware as per site requirement and as per manufacturers instructions, bass traps are formed to neutralize concentration of low frequencies. This treatment is integrated in entire system to achieve acoustical parameters as normally required for ensuring to maintain the acoustic parameters / acoustic characteristics in compliance with the maximum permissible ambient noise levels in Audiometric Rooms including providing applying two coats of synthetic enamel paint over a coat of pink primer of approved colour & shade on the outer surface of plywood complete all as specified and testing after completion as per manufacturers instructions . Make: Acoustic Engineers, A N Enterprises, Hospital Supply Agencies, A M Industries.

M & L for providing and fixing suspended grid supporting ceiling acoustic treatment. The treatment consists of galvanized iron channel trim fixed at 600mm centers using Wall Angles, Main Tees and Cross Tees. The special suspension is provided to suppress the structure born noise to offer good Ceiling Transmission Class. The entire grid is suspended using 4mm dia GI wire hangers at 1200mm centers. Air columns above and below ceiling are isolated. The high sound absorption treatment is provided with and including 12mm thick acoustic tiles. The Ceiling Tiles are having ceiling attenuation clause of 41dB(A), Noise reduction coefficient 0.65 and are of size 600mm x 600mm x12mm provided as normally required for ensuring to maintain the acoustic parameters / acoustic characteristics in compliance with the maximum permissible ambient noise levels in Audiometric Rooms complete all as specified and testing after completion as per manufacturers instructions . Make: Acoustic Engineers, A N Enterprises, Hospital Supply Agencies, A M Industries.

M & L for providing and fixing factory fabricated 900mm x 2100mm door of desired size created using 12mm thick plywood BWP frame and multiple layers of medium are created using fiber material, Plywood, Air gaps, etc. The closing mechanism consists of heavy duty door closer provided on the back side of the door. Compression material having more than 30% compression ratio is provided across the closing edge of the door including aluminium hardware are provided for operation. The exposed surface shall be covered with industrial laminate 1mm thick. The suitable door frame is created using 18mm thick plywood BWP . and a flush door of thickness 25mm to be fitted as the other side of frame to support this acoustically treated door to create a micro sound lock as normally required for ensuring to maintain the acoustic parameters / acoustic characteristics in compliance with the maximum permissible ambient noise levels in Audiometric Rooms including brass binges and aluminium handles complete all as specified and testing after completion as per manufacturers instructions . Make: Acoustic Engineers, A N Enterprises, Hospital Supply Agencies, A M Industries.

M & L for providing and fixing factory fabricated breathing window of size 900mm x 600mm consisting of two glass panes (bubble free) of variable thickness with suitable angles to stave off possibility of resonance and to improve (Tx) transmission loss. Both are fixed using 18mm thick plywood BWP and compression material having minimum of 30% compression ratio. The 8mm thick plain glasses are placed apart and moisture-absorbing chemicals are provided in between to restore good view for long time as normally required for ensuring to maintain the acoustic parameters / acoustic characteristics in compliance with the maximum permissible ambient noise levels in Audiometric Rooms complete all as specified and testing after completion as per manufacturers instructions . Make: Acoustic Engineers, A N Enterprises, Hospital Supply Agencies, A M Industries.

M & L for providing, laying and fixing PVC mat 2mm thick over the entire surface of the floor and extended 150mm along the wall for skirting including pasted with approved adhesive and fixed tightly complete all as specified .

SCHEDULE 'A' PART II (E/M WORKS) Taking down carefully copper / aluminium point wiring (light, fan socket or power) through steel / PVC conduit / casing caping including complete fittings such as switches, ceiling roses, pendants, regulators, sockets, buzzer, bell, switch sockets, etc removing and making good to the disturbed surfaces of walls/ceiling etc, with its original specification complete all as specified and directed.

M & L for point wiring with 1.5 sqmm (nominal area) PVC insulated and unsheathed multistranded FRLSH copper conductor cable (using colour code as per IS), 1100 volts grade drawn through and including suitable size concealed PVC conduit (ISI marked) with all accessories and terminated in and including concealed sheet steel terminale box with modular cover plate and frame of sutable size including 1.5 sqmm size PVC insulated, unsheathed, multistranded FRLSH copper conductor cable for continuous earth conductor (using green colour) and connecting to earth dolly for One light/ fan / bell point controlled by one switch 5 Amp, SP, one way 240 volts.

Ditto- all as per item No 14.00 above but One 3 pin 5 Amps switch socket on independent PVC modular box with cover plate and frame.

M & L for point wiring with 4 sqmm (nominal area) PVC insulated and unsheathed multistranded FRLSH copper conductor cable (using colour code as per IS), 1100 volts grade drawn through and including suitable size concealed PVC conduit (ISI marked) with all accessories and terminated in and including concealed sheet steel terminale box with modular cover plate and frame of sutable size including 4 sqmm size PVC insulated, unsheathed, multistranded FRLSH copper conductor cable for continuous earth conductor (using green colour) and connecting to earth dolly for one industrial metal clad power socket on independent board for AC

S & F Ceiling rose , surface bakelite 65x50mm , two to three terminal. all as directed. Make: Anchor

S & F switch modular one way, 6 Amp, 1 module (ISI marked) complete all as specified.

S & F switch modular one way, 16 Amp, 1 module (ISI marked) complete all as specified.

S & F modular Socket combination 2/3 pin, 6 Amps, 2 module complete all as specified.

S & F modular Socket combination 6/16 Amps,6 pin, 2 module complete all as specified.

S & F in repairs LED luminaire 600mm x 600mm, 36 Watt, 220 Volts, AC, recessed mounted, efficiency 120 In/W, White powder coated CRCA housing front frame with flat high transmission acrylic cover with high efficiency PMMA diffuser soft glair free light complete with driver, LED lamp suitable for roof ceiling including connecting up with three core flexible copper conductor cable of suitable size from ceiling rose to fitting complete all as specified. Make : Cat No BZRSQL 43L XE WH OD SD of Bajaj or equivalent of Crompton, Philips.

Supply and errect factory fabricated rectangular square duct made out of 24 gauge GI sheet in L shaped hollow profile including all accessories such as corner, carriage bolt hangers, gasket and seal the longitudinal joints with approved sealant including old U/s GI duct complete all as specified and directed by Engineer-in-Charge.

S & F nitrile rubber insulation one layers of 19mm thickness sticking on the chiller surfaces by using approved adhesive and sealing the joints by weather proof tape all as directed by Eng. in charge

S&F Wire netting of galvanised steel wire 24 guage dia of wire and average width of aperture 12mm fixed with tinned tacks or GI wire staples over entire duct insulation with 50mm overlap for preventing rat bites complete all as directed.

Supply, fixing, testing and commissioning of Jack Panel box for audiometric testing under the observation window including 2 x 8 Nos 605mm female jack socket for head phone, microphones, left right sockets, bone connection including suitable size copper conductor cable connections to the equipments required for a audiometric testing room complete all as specified.

Shree Ayyappa Engineering