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Table 5-1
Type A HEPA Filter Leak Test Specifications
Calculated
aerosol conc.
(ug/l)
1
Actual aerosol
conc. (ug/l)
2
1. The calculated concentration was established by the formula:
Concentration (ug/l) = (# Laskin nozzles @ 20 PSIG x 13,500)/Volume of air displaced
2. 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.
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