1. Physical Properties
- Dimensions:
o Working area width: 1000 - 1500 mm (depending on intended use).
o Depth: 600 - 900 mm.
o Height: 1500 - 2000 mm (external dimensions).
- Material Structure:
o Body: Stainless steel (grade 304 or 316), can be coated for chemical resistance.
o Window: Lead glass (5-10 mm thickness), provides protection against radiation.
o Work surface: Surface resistant to radioactive materials and corrosive chemicals.
2. Radiation Protection
- Lead Coating:
o Body and side panels: 2-10 mm lead thickness may vary according to the radiation level.
o Different parts of the fume cupboard provide effective protection against alpha, beta and gamma radiation.
- Lead Glass:
o High density glass providing over 90% attenuation against gamma radiation.
3. Ventilation and Filtration System
- Air Flow:
o Laminar air flow at a minimum speed of 0.5 m/s.
o By creating negative pressure in the working area, leakage of material is prevented.
4. Electrical and Power Features
- Power Requirement:
o 220-240 V, 50-60 Hz.
o Electricity consumption: 200-500 W.
- Control Panel:
o Speed controlled fan systems.
o LED lighting.
o Radiation detection sensors and alarm system. (Optional)
5. User Security
- Gloved Operation:
o Integrated glove compartments in fully enclosed systems. (Optional)
- Viewing Angle:
o Lead glass window providing a wide field of view.
