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NOV Fiber Glass Systems does not recommend testing any <br />installation with air or gas because of the safety hazards cre- <br />ated. The light weight, flexibility, and elasticity of fiberglass <br />pipe create different conditions than are present with steel <br />pipe. If a failure should occur while testing fiberglass pipe with <br />air or gas, the system would be subject to considerable whip- <br />ping and other shock -induced conditions due to the sudden <br />release of stored energy. The violent release can cause severe <br />personal injury or death to personnel in the area and can also <br />cause damage to the pipe or other property. <br />If a line is tested with air or gas, NOV Fiber Glass Systems <br />will not be responsible for any resulting injury to personnel or <br />damage to property, including the pipe. Such testing is done <br />entirely at the risk of those involved. <br />Test Procedures - Installed pipe systems should be tested <br />prior to use to assure soundness of all joints and connections. <br />Locate pressure gauge in close proximity to the pressuriz- <br />ing equipment, not directly on the piping system. A pressure <br />gauge with the test pressure at mid -scale is recommended. <br />The normal recommended procedure is to conduct a hydro- <br />static cyclic pressure test. The piping system should be sub- <br />jected to 10 pressurization cycles at 11/2 times the design op- <br />erating pressure or the lowest rated component of the system. <br />Pressure is then kept on the system for one to eight hours <br />while the line is inspected for leaks. <br />31 <br />ENVIRONMENTAL HEALTH <br />DEPARTMENT <br />