S. no

Particulars

Brand/Make

Qty

1

Biological safety cabinet, class 2 Type A2, 3 ft or 4 ft with following specifications-

A. advanced protection for sample, people and environment

B. Supply air filter: should have ULPA or HEPA filter with efficiency of 99.9995%or more, down to particle size 0.15 micron

C. Exhaust filter: ULPA or HEPA filter with efficiency of 99.995% or more

D. Independent supply and exhaust blowers should automatically balance the downflow and inflow/exhaust velocities to ensure continuous safe workingconditions, maintaining filter’s efficiency. Automatic pressure compensation with <10% flow rate of air delivery

E. The fans should work at a reduced noise (equal or less than 60 db), with low energy consumption, low maintenance and high reliability

F. Inflow and down flow velocityshould be 0.55 m/s and 0.28 m/s or more

G. should have reduced speed operation whenfront window is closed

H. Internal work area (both side walls and rear wall) should be made up of single piece 304 stainless steel, without screws, no paint with arc angle corner; the work tray should also be made up of a single piece stainless steel.

I. Must have UV lamp, which should be programmable for decontamination time and interlocked with front sash/window, fan and light (fluorescent lamp, >1000 lux)

J. Digital LCD display with for real-time display of parameters such as hours of operation, down-flow &inflowvelocity, airflow volume, negative pressure,accumulative running time of fan and UVlamp etc. The display should show audible and visual alarms for abnormal parameters.

K. Display should warn the user regarding remaining life of the filter (below 10%) and for UV lamp (less than 10%)

L. Should have UV resistance safety sash with more than 6 mm thickness

M. The air in-flow plate should be dismountable for cleaning, and must be equipped with an outlet valve for liquid/water for cleaning purpose

N. should have min 10° slop towards front forcomfort andergonomics

O. Internal dimension: 900-1200 mm in width, height should be 200-300 mm; must have an underframe caster of 680-690 mm high, made up of steel or with antibacterial coated strong metal, should be made non-movable/locked

P. should have 1-2socket (5 amp, 230 v) and 1-2 opening for vacuum tubing (side)

Q. Cabinet should be certified NSF/ANSI 49 or EN12469 or equivalent

R. Must have service centre in Kolkata

Haier/Labconco/Thermo/Eppendorf or similar

1