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The categories of Bio Safety Cabinet are defined and classified according to the National Sanitation Foundation Standard, NSF/ANSI 49.
The Class I BSC is designed to provide personnel protection
BSC grades | Inlet air velocity | % of air flow | Exhaust system | Applications | ||
m/s | internal | Exhausted | ||||
Class I | 0.38 | 0 | 100 | External | It is used for laboratories that work with | |
The Class II BSC is designed not only to provide personnel protection but also to protect work surface materials from being contaminated by the room air which is drawn into the cabinet. And it is used for protecting the laboratory environment as well. It is acceptable for working with medium-level risk tests. According to the National Sanitation Foundation Standard, NSF/ANSI 49(2002), it can be defined and classified into 4 types. Their features are compared below.
BSC grades | Inlet air velocity | % of air flow | Exhaust system | Applications | ||
m/s | internal | Exhausted | ||||
Class II | 0.38 | 70 | 30 | Internal or external (Exhaust hood) | It is used for laboratories which are work | |
Class II | 0.5 | 70 | 30 | |||
Class II | 0.5 | 30 | 70 | External | It is used for laboratories which are work | |
Class II | 0.5 | 0 | 100 | |||
Class III biological safety cabinets are suitable for work in Bio-safety Level 3 and 4 laboratories and provide protection for the highest hazardous level of Risk Group 3, Risk Group 4, or above. It virtually is a sealed gas-tight cabinet. Moreover, its supply air is HEPA- filtered, and exhaust air passes through two HEPA filters, which keep the cabinet interior under negative pressure consequently. The only way of accessing the work surface for operation is by means of heavy-duty rubber gloves, which are attached to ports in the cabinet virtually.
BSC grades | Inlet air velocity | % of air flow | Exhaust system | Applications | ||
m/s | internal | Exhausted | ||||
Class III | N/A | 0 | 100 | Exhaust air should pass through two filters. | It is used for laboratories that work with | |
BSC category | Laboratory type | Type of protection | ||||
Class I | Groups 1–3, microorganisms in Risk; | Operator, environment | ||||
Class Ⅱ A1 | Groups 1–3, microorganisms in Risk | Operator, environment, product | ||||
Class Ⅱ A2 | Groups 1–3, microorganisms in Risk | Operator, environment, product | ||||
Class Ⅱ B1 | Groups 1–3, microorganisms in Risk; | Operator, environment, product | ||||
Class Ⅱ B2 | Groups 1–3, microorganisms in Risk; | Operator, environment, product | ||||
Class III | Groups 1–3, microorganisms in Risk; | Operator, environment, product | ||||
| Type-CLASS II | A1 | A2 | B1 | B2 | A1 | A2 | B1 | B2 | A1 | A2 | B1 | B2 |
| Model Number | BA1-4 | BA2-4 | BB1-4 | BB2-4 | BA1-5 | BA2-5 | BB1-5 | BB2-5 | BA1-6 | BA2-6 | BB1-6 | BB2-6 |
| External Dimension ( W * D * H mm) | 1450*827*2200 | 1750*827*2200 | 2050*827*2200 | |||||||||
| Internal Dimension ( W * D * H mm) | 1250*600*650 | 1550*600*650 | 1850*600*650 | |||||||||
Product meets | NSF 49、EN12469、JIS K 3800 | |||||||||||
Air cleanliness | ISO 14644-1 | |||||||||||
| Body Construction | 1.5 t SUS 304 | |||||||||||
| HEPA filter 0.3 um H14 | 1170*450*70 mm | 1470*450*70 mm | 1770*450*70 mm | |||||||||
| HEPA filter (Exhaust) | 520*460*100 mm 0.3 um H14 | 520*460*290 mm 0.3 um H14 | 700*460*100 mm 0.3 um H14 | 700*460*292 mm 0.3 um H14 | 1000*460*100mm 0.3 um H14 | 1000*460*292 mm 0.3 um H14 | ||||||
| Blower | EC Brushless Motor | |||||||||||
| Worktable | SUS 304 perforated panel | SUS 304 perforated panel | SUS 304 perforated panel | |||||||||
| Air in flow | 75 FPM | 100 FPM | 100 FPM | 100 FPM | 75 FPM | 100 FPM | 100 FPM | 100 FPM | 75 FPM | 100 FPM | 100 FPM | 100 FPM |
| Air down flow | 60 FPM | 60 FPM | 60 FPM | |||||||||
| Air circulation | 70% | 70% | 30% | 0% | 70% | 70% | 30% | 0% | 70% | 70% | 30% | 0% |
| Air Exhaust | 30% | 30% | 70% | 100% | 30% | 30% | 70% | 100% | 30% | 30% | 70% | 100% |
| Light Illuminance ( NSF 49 ) | > 600 lux | > 600 lux | > 600 lux | |||||||||
Noise Level | < 65 dBA | < 65 dBA | < 65 dBA | |||||||||
| UV Lamp | 254nm | 254nm | 254nm | |||||||||
The categories of Bio Safety Cabinet are defined and classified according to the National Sanitation Foundation Standard, NSF/ANSI 49.
The Class I BSC is designed to provide personnel protection
BSC grades | Inlet air velocity | % of air flow | Exhaust system | Applications | ||
m/s | internal | Exhausted | ||||
Class I | 0.38 | 0 | 100 | External | It is used for laboratories that work with | |
The Class II BSC is designed not only to provide personnel protection but also to protect work surface materials from being contaminated by the room air which is drawn into the cabinet. And it is used for protecting the laboratory environment as well. It is acceptable for working with medium-level risk tests. According to the National Sanitation Foundation Standard, NSF/ANSI 49(2002), it can be defined and classified into 4 types. Their features are compared below.
BSC grades | Inlet air velocity | % of air flow | Exhaust system | Applications | ||
m/s | internal | Exhausted | ||||
Class II | 0.38 | 70 | 30 | Internal or external (Exhaust hood) | It is used for laboratories which are work | |
Class II | 0.5 | 70 | 30 | |||
Class II | 0.5 | 30 | 70 | External | It is used for laboratories which are work | |
Class II | 0.5 | 0 | 100 | |||
Class III biological safety cabinets are suitable for work in Bio-safety Level 3 and 4 laboratories and provide protection for the highest hazardous level of Risk Group 3, Risk Group 4, or above. It virtually is a sealed gas-tight cabinet. Moreover, its supply air is HEPA- filtered, and exhaust air passes through two HEPA filters, which keep the cabinet interior under negative pressure consequently. The only way of accessing the work surface for operation is by means of heavy-duty rubber gloves, which are attached to ports in the cabinet virtually.
BSC grades | Inlet air velocity | % of air flow | Exhaust system | Applications | ||
m/s | internal | Exhausted | ||||
Class III | N/A | 0 | 100 | Exhaust air should pass through two filters. | It is used for laboratories that work with | |
BSC category | Laboratory type | Type of protection | ||||
Class I | Groups 1–3, microorganisms in Risk; | Operator, environment | ||||
Class Ⅱ A1 | Groups 1–3, microorganisms in Risk | Operator, environment, product | ||||
Class Ⅱ A2 | Groups 1–3, microorganisms in Risk | Operator, environment, product | ||||
Class Ⅱ B1 | Groups 1–3, microorganisms in Risk; | Operator, environment, product | ||||
Class Ⅱ B2 | Groups 1–3, microorganisms in Risk; | Operator, environment, product | ||||
Class III | Groups 1–3, microorganisms in Risk; | Operator, environment, product | ||||
| Type-CLASS II | A1 | A2 | B1 | B2 | A1 | A2 | B1 | B2 | A1 | A2 | B1 | B2 |
| Model Number | BA1-4 | BA2-4 | BB1-4 | BB2-4 | BA1-5 | BA2-5 | BB1-5 | BB2-5 | BA1-6 | BA2-6 | BB1-6 | BB2-6 |
| External Dimension ( W * D * H mm) | 1450*827*2200 | 1750*827*2200 | 2050*827*2200 | |||||||||
| Internal Dimension ( W * D * H mm) | 1250*600*650 | 1550*600*650 | 1850*600*650 | |||||||||
Product meets | NSF 49、EN12469、JIS K 3800 | |||||||||||
Air cleanliness | ISO 14644-1 | |||||||||||
| Body Construction | 1.5 t SUS 304 | |||||||||||
| HEPA filter 0.3 um H14 | 1170*450*70 mm | 1470*450*70 mm | 1770*450*70 mm | |||||||||
| HEPA filter (Exhaust) | 520*460*100 mm 0.3 um H14 | 520*460*290 mm 0.3 um H14 | 700*460*100 mm 0.3 um H14 | 700*460*292 mm 0.3 um H14 | 1000*460*100mm 0.3 um H14 | 1000*460*292 mm 0.3 um H14 | ||||||
| Blower | EC Brushless Motor | |||||||||||
| Worktable | SUS 304 perforated panel | SUS 304 perforated panel | SUS 304 perforated panel | |||||||||
| Air in flow | 75 FPM | 100 FPM | 100 FPM | 100 FPM | 75 FPM | 100 FPM | 100 FPM | 100 FPM | 75 FPM | 100 FPM | 100 FPM | 100 FPM |
| Air down flow | 60 FPM | 60 FPM | 60 FPM | |||||||||
| Air circulation | 70% | 70% | 30% | 0% | 70% | 70% | 30% | 0% | 70% | 70% | 30% | 0% |
| Air Exhaust | 30% | 30% | 70% | 100% | 30% | 30% | 70% | 100% | 30% | 30% | 70% | 100% |
| Light Illuminance ( NSF 49 ) | > 600 lux | > 600 lux | > 600 lux | |||||||||
Noise Level | < 65 dBA | < 65 dBA | < 65 dBA | |||||||||
| UV Lamp | 254nm | 254nm | 254nm | |||||||||
