Exhaust hepa filter leak test – Labconco PURICARE Procedure Station Models 34812xx User Manual
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Exhaust HEPA Filter Leak Test
All Logic models were tested to the HEPA Filter Leak Test as described in ANSI/NSF
Standard 49:2007.
Note: ensure all internal surfaces of the Logic have been appropriately
decontaminated before proceeding.
Note: If so equipped, the prefilter element on the towel catch should be
removed, and the aerosol generator should be placed nearby to inject the
aerosol as shown in Figure 6-6.
Figure 6-6
Testing at Labconco has shown the actual concentration varies from the calculated
value. Table 6-2 shows the actual vs. calculated concentrations for the B2 models.
Table 6-2
Exhaust HEPA Filter Leak Test Specifications
Model 34410
34610
Air Displacement (CFM)
723
1083
Laskin Nozzles needed
2
2
Theoretical aerosol conc.
(ug/l)
1
38 25
Actual aerosol conc. (ug/l)
1
21
17
3. The calculated concentration was established by the formula:
Concentration (ug/l) = (# Laskin nozzles @ 20 PSIG x 13,500)/Volume of air displaced
4. Based on Mineral oil
1. Turn on the photometer and allow it to operate for a minimum of 5 minutes.
Leave the valve in the “CLEAR” setting.
2. Check the oil level of the generator – it must be within 1/8” of the level line
when the generator is sitting level.
3. Establish the 100% and 0% concentration levels for the photometer.
- PURICARE Procedure Station Models 34810xx PURICARE Procedure Station Models 34802xx PURICARE Procedure Station Models 34800xx Type B2 Biosafety Cabinets Models 34610xx Type B2 Biosafety Cabinets Models 34410xx Type A2 Biosafety Cabinets Models 34609 Type A2 Biosafety Cabinets Models 34509 Type A2 Biosafety Cabinets Models 34409 Type A2 Biosafety Cabinets Models 34309 Type A2 Biosafety Cabinets Models 34608xx Type A2 Biosafety Cabinets Models 34508xx Type A2 Biosafety Cabinets Models 34408xx Type A2 Biosafety Cabinets Models 34308xx Type A2 Biosafety Cabinets Models 34600xx Type A2 Biosafety Cabinets Models 34500xx Type A2 Biosafety Cabinets Models 34400xx Type A2 Biosafety Cabinets Models 34300xx