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NSF/ANSI 49
Class II (Laminar Flow) Biosafety Cabinetry

Cabinet Style
A = Bench Unit With Base or Adjustable Legs Provided
B = Bench Unit Without Base or Adjustable Legs Provided
C = Console		 Window Type
H = Hinged
S = Sliding
F = Fixed		 Bench Height
NA = Not Applicable
NP = Not Provided

CBV = Concurrent Balance Value

Due to a change in nomenclature in NSF/ANSI 49 - 2002 “Class II (Laminar Flow) Biosafety Cabinetry,” Class II, Type A cabinets are now referred to as Class II, Type A1 and Class II, Types B3 and A/B3 cabinets as Class II, Type A2. Class II, Types B1 and B2 cabinets remain unchanged.

Biosafety cabinet models Listed under NSF/ANSI 49 are approved for use with a power supply of 115V/60Hz, unless otherwise noted. If biosafety cabinets have been approved for use with additional power supplies, the power supply will be indicated in the Official Listing.


 
Chung Fu Technical Development Co., Ltd. 
7F, No. 687, Mintsu East Road
Taipei 105 
Taiwan 
886 2 2600 1761
Visit this company's website
Facility : New Taipei City, Taiwan

Model
Number		 Cabinet
Type/Style		 Inflow
Velocity
(fpm)		 Downflow
Velocity
(fpm)		 CBV (cfm)
at Static
Pressure
(in w.g.)		 Cabinet
Width
ft.		 Window
Ht/Type
in.		 Bench
Ht
Max
in.		 Acceptable
Options
 
AHA-133-AA-B[1] [2] A2 A 100 - 110 54 - 64 N/A 4 10S 28 I.V. Pole
U.V. Light
AHA-133-AB-B[1] [2] [3] A2 A 100 - 110 54 - 64 N/A 4 10S 28 I.V. Pole
U.V. Light
AHA-133-AC-B[1] [2] [4] A2 A 100 - 110 54 - 64 N/A 4 10S 28 I.V. Pole
U.V. Light
AHA-133-CA-B[1] [5] A2 A 100 - 110 54 - 64 N/A 4 10S 28 I.V. Pole
U.V. Light
AHA-133-CB-B[1] [3] [5] A2 A 100 - 110 54 - 64 N/A 4 10S 28 I.V. Pole
U.V. Light
AHA-133-CC-B[1] [4] [5] A2 A 100 - 110 54 - 64 N/A 4 10S 28 I.V. Pole
U.V. Light
AHA-193-AA-A[2] [6] A2 A 100 - 110 54 - 64 N/A 6 8S 29 I.V. Pole
U.V. Light
AHA-193-AB-A[2] [3] [6] A2 A 100 - 110 54 - 64 N/A 6 8S 29 I.V. Pole
U.V. Light
AHA-193-AC-A[2] [4] [6] A2 A 100 - 110 54 - 64 N/A 6 8S 29 I.V. Pole
U.V. Light
AHA-193-CA-A[5] [6] A2 A 100 - 110 54 - 64 N/A 6 8S 29 I.V. Pole
U.V. Light
AHA-193-CB-A[3] [5] [6] A2 A 100 - 110 54 - 64 N/A 6 8S 29 I.V. Pole
U.V. Light
AHA-193-CC-A[4] [5] [6] A2 A 100 - 110 54 - 64 N/A 6 8S 29 I.V. Pole
U.V. Light
AHB-133-AA-A[2] [7] B2 B 100 - 110 54 - 64 N/A 4 8S 34 I.V. Pole
U.V. Light
AHB-133-AB-A[2] [3] [7] B2 B 100 - 110 54 - 64 N/A 4 8S 34 I.V. Pole
U.V. Light
AHB-133-AC-A[2] [4] [7] B2 B 100 - 110 54 - 64 N/A 4 8S 34 I.V. Pole
U.V. Light		 

[1] Beginning with serial number AHA1608060. Inflow nominal set point of 105 fpm was
    established with a direct airflow reading instrument.  A corresponding inflow nominal
    set point of 105 fpm (corrected to local air density) was confirmed using manufacturer's
    recommended alternate method with thermal anemometer in a constricted (3 inch high)
    access opening and applying appropriate correction factor without adjusting cabinet
    airflow balance.  The downflow nominal set-point of 59 fpm was established 4 inches
    above the bottom of the sash with the I.V. Pole and U.V. Light removed.  This cabinet
    model was Certified to NSF/ANSI 49-2022. Chung Fu Technical Development Co., Ltd. Models
    AHA-133-AA-B, AHA-133-AB-B, AHA-133-AC-B, AHA-133-CA-B, AHA-133-CB-B and AHA-133-CC-B
    are marketed by Air Science, LLC, USA as Air Science Models AS-AHA-133-AA-B,
    AS-AHA-133-AB-B, AS-AHA-133-AC-B, AS-AHA-133-CA-B, AS-AHA-133-CB-B and AS-AHA-133-CC-B,
    respectively.
[2] Control panel is touch screen on this model.
[3] Certified for use with power supplies of 230V/50Hz and 230V/60Hz.
[4] Certified for use with power supplies of 100V/50Hz and 100V/60Hz.
[5] Control panel is membrane switch on this model.
[6] Inflow nominal set point of 105 fpm was established with a direct airflow reading
    instrument. The downflow nominal set-point of 59 fpm was established 4 inches above the
    bottom of the sash with the I.V. Pole and U.V. Light removed. This cabinet model was
    Certified to NSF/ANSI 49-2020. Chung Fu Technical Development Co., Ltd. Models
    AHA-193-AA-A, AHA-193-AB-A,AHA-193-AC-A, AHA-193-CA-A, AHA-193-CB-A and AHA-193-CC-A are
    marketed by Air Science, LLC, USA as Air Science Models AS-AHA-193-AA-A,
    AS-AHA-193-AB-A, AS-AHA-193-AC-A, AS-AHA-193-CA-A, AS-AHA-193-CB-A and AS-AHA-193-CC-A,
    respectively.
[7] Inflow nominal set point of 105 fpm was established with a direct airflow reading
    instrument. The downflow nominal set-point of 59 fpm was established 4 inches above the
    bottom of the sash with the I.V. Pole and U.V. Light removed. This cabinet model was
    Certified to NSF/ANSI 49-2022.

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