Work with biohazardous materials involving the use of volatile chemicals and/or radioactivity should exclusively be conducted in a biological safety cabinet that is vented outside the building.
Ducted Class II Type A2, Class II Type B1 and B2 (always hard-ducted), and Class III BSCs may be used with different amounts of chemicals/radioactive materials. Please review the following table for more specific details:
|BSC CLASS / TYPE||VOLATILE CHEMICALS||RADIONUCLIDES|
|II / A2||If ducted outside building: minute amounts||If ducted outside building: trace amounts|
|II / B1||Low levels||Trace amounts|
|II / B2||Yes||Yes|