bids are invited for 1 providing & placing of premium executive high back chair of greenguard / bifma level 2 certified : the seat should be made of injection molded plastic outer & inner. plastic inner should be upholstered with pure leather and moulded high resilience polyurethane foam of density 45 + / - 2 kg / m3, and hardness load 16 + / - 2 kgf as per is: 7888 for 25% compression. overall size : 76.1 cm ( w ) x 76.1 cm ( d ) x 114.0- 131.5 cm ( h ) . the back should be made of polyurethane foam with insitu molded ms e.r.w. round tube of size 1.9 + / - 0.03cm x 0.16 + / - 0.0128 cm. back is upholstered with pure leather. armrests: the armrest top should be moulded from polyurethane upholstered in pure leather and mounted on to a drop lift adjustable type of tubular armrest support made of dia. 3.81 + / - 0.03 cm x 0.2 + / - 0.01 cm thick m.s. e.r.w. tube having chrome plated finish. the armrest should be hight adjustable up to 6.5 + / - 0.5 cm in 5 steps. mechanism: the active bio- synchro mechanism should be designed with the following features: 360° revolving type, front - pivot for tilt with feet resting on the ground and continuous lumbar support, tilt tension adjustment should be operated in seating position, 5- position tilt limiter giving option of variable tilt angle to tht chair, seat / back tilting ratio of 1:2, the mechanism housing should be made up of hpdc aluminium black powder coated. seat depth adjustment: seat depth adjustment should be integrated in the seat through a sliding mechanism. seat depth adjustment range should be of 6.0 + / - 0.5 cm. adjustable back support: back frame should be connected to the up / down mechanism housed in plastic t spine. it sould be adjustable in the range of 7.42 + / - 0.5 cm for the comfortable back support tot suit individual need. pneumatic ht. adjustment: the pneumatic height adjustment should be and adjustment stroke of 10.0 + / - 0.3 cm. pedestal assembly: the pedestal should be high pressure die cast polished aluminium and fitted with 5 nos. twin wheel castors. the pedestal is 65.0 + / -0.5 cm. pitch - center dia. ( 75.0 + / - 1.0 cm. with castors. ) twin wheel castor: 5 nos. twin wheel castors should be injection moulded in plastic having 6.0 + / - 0.1 cm wheel diameter and assembled to pedestal. approved make- godrej ( greenguard / bifma certified co. design as approved by engineer-in-charge. 2 2 providing & placing of premium executive mid back chair of greenguard / bifma level 2 certified : the seat should be made of injection molded plastic outer & inner. plastic inner should be upholstered with pure leather and moulded high resilience polyurethane foam of density 45 + / - 2 kg / m3, and hardness load 16 + / - 2 kgf as per is: 7888 for 25% compression. overall size : 76.1 cm ( w ) x 76.1 cm ( d ) x 96.5 - 114.0 cm ( h ) . the back should be made of polyurethane foam with insitu molded ms e.r.w. round tube of size 1.9 + / - 0.03cm x 0.16 + / - 0.0128 cm. back is upholstered with pure leather. armrests: the armrest top should be moulded from polyurethane upholstered in pure leather and mounted on to a drop lift adjustable type of tubular armrest support made of dia. 3.81 + / - 0.03 cm x 0.2 + / - 0.01 cm thick m.s. e.r.w. tube having chrome plated finish. the armrest should be hight adjustable up to 6.5 + / - 0.5 cm in 5 steps. mechanism: the active bio- synchro mechanism should be designed with the following features: 360° revolving type, front - pivot for tilt with feet resting on the ground and continuous lumbar support, tilt tension adjustment should be operated in seating position, 5- position tilt limiter giving option of variable tilt angle to tht chair, seat / back tilting ratio of 1:2, the mechanism housing should be made up of hpdc aluminium black powder coated. seat depth adjustment: seat depth adjustment should be integrated in the seat through a sliding mechanism. seat depth adjustment range should be of 6.0 + / - 0.5 cm. adjustable back support: back frame should be connected to the up / down mechanism housed in plastic t spine. it sould be adjustable in the range of 7.42 + / - 0.5 cm for the comfortable back support tot suit individual need. pneumatic ht. adjustment: the pneumatic height adjustment should be and adjustment stroke of 10.0 + / - 0.3 cm. pedestal assembly: the pedestal should be high pressure die cast polished aluminium and fitted with 5 nos. twin wheel castors. the pedestal is 65.0 + / -0.5 cm. pitch - center dia. ( 75.0 + / - 1.0 cm. with castors. ) twin wheel castor: 5 nos. twin wheel castors should be injection moulded in plastic having 6.0 + / - 0.1 cm wheel diameter and assembled to pedestal. approved make- godrej ( greenguard / bifma certified co. ) design as approved by engineer-in-charge. 1 3 providing and placing of executive visitor fixed chair : the chair should be of size 60.9 ( w ) x 64.2 ( d ) 98.2cm cushioned seat is to be made of injection molded plastic outer & inner. plastic inner shall be upholstered with leatherette and moulded high resilience ( h r ) polyurethane foam of density 45+ / -2kg / m compression. seat size should be 47.0 cm ( w ) x 48.0cm ( d ) .the cushioned back is to be made of pu foam with insitu molded ms e.r.wround tube of size 1.9+ / -0.03cm x 0.16+ / -0.0128cm. duely upholstered with leatherette. mechanism - the tubular frame shall be cantilever type & made up of 02.54+ / -0.03cm x 0.2+ / -0.016cm thk s.s 202 tube. the back connect to frame through chrome platedhigh pressure die cast connector piece. approved make- godrej ( greenguard / griha / bifma ) design as approved by engineer-in-charge. total quantity : 11