Biosafety Cabinets

Question 1

Removes toxic chemicals

Answer 1

Fume good

Question 2

Ducting sys. Or ductless

Answer 2

Fume hoods

Question 3

Fume hood has hepa filler

Answer 3

False fume hood has no hepa filter

Question 4

Fume hood is for biohazard agents.

Answer 4

True

Question 5

Product protection. No personnel protection

Answer 5

Laminar flow cabinet

Question 6

Not for biohazard agent o chemical fumes

Answer 6

Laminar flow cabinets

Question 7

Personnel and environment protection

Answer 7

Class I BSC I personnel and environment protection

Question 8

Personnel, product and environment protection

Answer 8

Class l1 and Ili BBC

Question 9

Not for chemical vapors

Answer 9

Hepa filters

Question 10

provide effective primary containment for work with infectious material or toxins when they are properly maintained and used in conjunction with good laboratory techniques

Answer 10

BsC

Question 11

Continuous stream of inward air

Answer 11

Inflow

Question 12

Helps prevent aerosol from escaping through opening

Answer 12

Inflow

Question 13

The _______which is exhausted into the surrounding containment zone or directly to the outside atmosphere, is _____to protect the environment

Answer 13

exhaust air, HEPA-filtered

Question 14

Meaning of hepa filter

Answer 14

High efficiency particulate air

Question 15

Ulpa filler

Answer 15

Ultra low penetration air

Question 16

Important definitions:
- HEPA: ___% - at ___ microns

ULPA: ____% - at ___ microns

Answer 16

Important definitions:
- HEPA: 99.99% - at 0.3 microns
- ULPA: 99.999% - at 0.12 microns

Question 17

The “classical” definition of HEPA filter is ___ at ____ microns, but nowadays all BSC and LF in US use ____% at ___vm

Answer 17

The “classical” definition of HEPA filter is 99.97% at 0.3 microns, but nowadays all BSC and LF in US use 99.99% at 0.3 m

Question 18

I micron =

Answer 18

I millionth of a meter or 1/ 126.000 of an inch

Question 19

Hepa / Ulpa capability

Answer 19

Removes a broad range of airborne contaminants

Question 20

Can affect integrated circuit speed

Answer 20

Impurity con

Question 21

100% Exhaust
• Inflow velocity 75 fpm minimum
• BSL 1 –3 Usage

Answer 21

Class I BSC

Question 22

Negative-pressureventilatedcabinet

Answer 22

Class ll BsC

Question 23

• 30% Exhaust, 70% Re- circulate
Inflow velocity 75 fpm minimum

Answer 23

Class IL type al

Question 24

30% Exhaust, 70% Re-circulate

Inflow velocity 100 fpm minimum

Answer 24

Class ll type a2

Question 25

Minute amounts of non-volatile toxic chemicals and radionuclides if canopy/thimble exhausted

Answer 25

Class II Type A1

Question 26

Minute amounts of volatile toxic chemicals and radionuclides if canopy/thimble exhausted

Answer 26

Class i1 type a2

Question 27

70% Exhaust, 30% Re-circulate Inflow velocity 100 fpm minimum

Answer 27

Class IL type B1

Question 28

Minute amounts of volatile toxic chemicals and radionuclides

Answer 28

Class 11 type b1

Question 29

100% Exhaust

Answer 29

Class i1 type b2

Question 30

Small amounts of volatile toxic chemicals and radionuclides

Answer 30

Class l1 type b2

Question 31

100% Exhaust Glove Box

Answer 31

Class 3 BSC

Question 32

Must have interlocked internal blower with audible and visual alarm for exhaust failure

Answer 32

Class 2 type b2 and b1