mech9.txt
mech9.txt — 1.6 KB
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Office of Air Quality, Permitting & Enforcement Division Mechanical Section Policy Memorandum Date: February 14, 1994 No.: 9 From: Skip Clark, P.E. Approved by: Gary Wallin, P.E. Subject: Standard Exemption No. 89 Policy: Under part (c)(2) of Standard Exemption No. 89, it requires within 60 days of start-up, the control device performance must be verified through stack testing or other TNRCC approved test methods or procedures. If the control device manufacturing company can provide emission data which shows that the same model as being installed was tested somewhere else and the testing procedure can be quality assured by our Mobile Source and Monitoring Section, we will accept the results of that testing toward satisfying the conditions of verifying the removal efficiency of the control device. Background: In the development of this exemption, it was felt that the control device efficiency needed to be verified, but it was also noted that this might put an economical burden on some small hospitals. Since most ethylene oxide (ETO) sterilizer control devices have shown high removal efficiencies and since there are not much variation within each model, the sampling of a particular model would be the same no matter where the unit was tested. Also as a point of clarification, only those sterilizers that use between 100 and 1000 pounds of ETO per year need to be registered with a PI-7. Necessary Action: None cc: All Mechanical Section