(b)(4).One (1) dual limb 311403 breathing circuit, anesthesia, adult, expiratory 0.5-1.8m w/ex was returned for investigation.A visual inspection was performed to examine the sample for any signs of abuse/misuse/damage.None were noted.The circuit was setup for a leak test on a lab leak tester.The ventilator tubing sets were tested at 60 +/- 3 cm h2o of pressure with incoming equipment pressure set a 30 psi.The acceptable leak value is = 30 ml/min.The actual ml/min pressure recorded at test was 14ml/min.The circuit does leak, but within the established iso acceptable parameters.The complaint sample was tested against iso standard 5367 annex e which states at 60 +/- 3 cm h2o of pressure with incoming equipment pressure set a 30 psi the acceptable leak value is = 30 ml/min.The sample was well within the iso specified leakage value.
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