Tender R/MC/chem./2022/07 due on 31.12.07
Class III Bio Safety Cabinet, totally enclosed ventilated unit of gas- tight construction. Operations in the cabinet to be conducted through Hand – Holes with gloves. The Cabinet unit is to be maintained under negative pressure. Supply air is to be drawn into the cabinet through HEPA filters. The exhaust air is to be treated by HEPA filtration and incinerations.
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Technical Specifications: |
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Internal Dimension |
W 1200 x D 600 x H 600 mm |
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External Dimension |
W 1300 x D 1415 x H 2200 mm (external dimensions must allow the instrument to enter the site of location) |
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Airbalancing |
0% recirculation & 100% exhaust with Double HEPA Filtration |
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Glove Ports |
Two glove ports fitted with neoprene gloves attached in a glass-tight manner and replacable without compromising containment. Glove port should be minimum 8 inches in diameter. |
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Cabinet Negative Pressure |
Minimum 0.5” Negative Pressure as per NSF 49, Audio alarm for low vacuum |
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Air Cleanliness level |
ISO Class 5 as per ISO 14644-1 |
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Air volume |
At initial velocity |
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Down Flow HEPA filter |
Mini –Pleat HEPA , Efficiency >99.9%, łH13 Grade |
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Exhaust HEPA filter |
2 Stage Mini –Pleat HEPA , Efficiency >99.9% at 0.3µ, łH13 Grade |
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Pre Filter |
EU 3 grade, washable Pre filter |
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Light Intensity |
> 900 Lux at work table |
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Material of Construction |
IS 304 grade Stainless Steel with Satin finish |
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Front Door |
SS Framework with 5 mm clear Poly Carbonate Sheet – Air Tight Construction with Pneumatic Lift |
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Work Surface |
IS 304 grade stainless steel with satin finish |
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Differential Pressure (ΔP)- 2 Nos |
0-25mm Magnehelic Gauge for HEPA filter |
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Negative Pressure |
0-25mm Magnehelic Gauge for HEPA filter |
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Exhaust Motor Blower – 2 Nos |
DIDW type Centrifugal Blower, 1000 CFM, Direct Driven, Statically and dynamically balanced Impeller, Single Phase, 1440 RPM |
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Ultra Violet lamp |
15 watts, 3 Feet (Phillips, Holland or equivalent make) |
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Pass Box – 2 Nos |
Double side Pass Boxes designed to avoid cross contamination entry into the cabinet, to enable samples and other work items to be passed to and from the chamber. The unit should act as an air lock device preventing ambient air from entering, or clean air from exiting the cabinet. |
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Microbe Burn Out |
The system should be equipped with high resistance electric heater with asbestos / glass wool insulation. The system must be provided with automatic temperature controlling thermostat to raise the exhaust air temperature to 100-degrees Celsius above ambient temperature |
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Accessories |
5/15 amps Power Socket Switch (2nos.), levelling leg, Drain cock, Air/Gas Cock |
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