Laserfiche WebLink
-2 - <br />shall be two (2) and four (4) CFM, respectively. <br />4 INTERFERENCES <br />4.1 Leaks in the piping for the Clean Air Separator could bias the test results toward <br />non-compliance. <br />4.2 Introduction of gaseous nitrogen into the system at flow rates exceeding four (4) <br />CFM may bias the results of the test toward non-compliance. Only gaseous <br />nitrogen shall be used to conduct this test. <br />4.3 Pressurizing the Clean Air Separator bladder greater than 10.00" we could <br />damage the bladder, biasing the test toward non-compliance. <br />4.4 When conducting the positive pressure test from this test procedure (Referred to <br />in Section 2.2), bladder contact with the outer tank wall of the Clean Air <br />Separator could bias the results toward compliance. <br />4.5 Thermal Bias for Electronic Manometers <br />Electronic manometers shall have a warm-up period of at least 15 minutes <br />followed by a drift check of 5 minutes. If the drift exceeds 0.01" wc, the <br />instrument should not be used. <br />5 APPARATUS <br />5.1 Nitrogen <br />Use commercial grade gaseous nitrogen in a high pressure cylinder, equipped <br />with a two-stage pressure regulator. <br />5.2 Pressure Measurement Device <br />Use an electronic pressure measurement device to monitor the pressure decay <br />in the Clean Air Separator. The pressure measurement device shall, at a <br />minimum, be readable to the nearest 0.01" wc. <br />5.3 Test Port Assembly <br />Use a test port assembly constructed similar to the one in Figure A. The <br />assembly should have an 8 oz. Pressure Relief valve, to ensure that the Clean <br />Air Separator is not over pressurized. The Model 9968 Clean Air Separator Test <br />Port Assembly can be purchased from Healy Systems, Inc. <br />Healy Phase 11 EVR System Including Veeder-Root ISD, Exhibit 4 — VR -202-A <br />