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1 Containment system Pneumatic testing <br /> testing <br /> Plan tests carefully and carry them out with ail due precaution. <br /> Pressurizing equipment should be suited to the size of the system and the pressure <br /> required and should be operated by qualified and experienced personnel only. <br /> Pressure sources should be capable of approaching test pressure gradually. <br /> Use gauges with a full-scale reading of no more than twice the test pressure:Do not <br /> use a 100 psi gauge fora 10 psi test. Use reliable gauges calibrated against a dead <br /> weight tester and zeroed for atmospheric pressure. <br /> Pneumatic testing at approximately 10 psi is recommended and is the preferred <br /> method of testing containment piping.Higher pressures are dangerous as a sudden <br /> release could cause the piping to whip out of the trench.A 10-psi test will attest to the <br /> integrity of the system.If higher test pressures are mandated,please consult Ameron <br /> Fiberglass Pipe Systems. <br /> F -- - ---. <br /> I The recommendations <br /> offered herein are intended <br /> Fig. 71-1. Access to the annularspace 1112 hole I only as a guide.Ameron I <br /> between primary and containment is 1 assumes no responsibility or <br /> obtained by means o/saddles with <br /> 2-incfroutlets. �. Appivadhesiveto 1 liability for the consequences <br /> Remove surface <br /> Cut edge of hole I of any testing practices. <br /> L——— <br /> gloss before -' ——————. <br /> applying adhesive <br /> Apply adhesive - <br /> i <br /> Provisions fortesting and monitoring <br /> Pressure test equipment or leak detection devices located outside the sump may be <br /> connected to the containment pipe by means of U-traps with threaded adapters at the <br /> end.Two alternative configurations are shown in Figs. 11-3 and 11-4.U-traps are <br /> typically located adjacent to manholes,at branches or at low points in the system. <br /> Observe the following saddle installation procedures when fabricating U-traps. <br /> 1) Cut a V/e-inch hole in the containment pipe using a circular hole saw with a pilot <br /> drill.Do not force the hole saw as this may fray the edges of the hole. <br /> 2) Remove surface gloss from the pipe wall where the saddle is to be bonded; <br /> clean burrs from the edge of the hole. <br /> 3) Insure that the bonding surfaces are clean and dry before applying adhesive. <br /> 4) Mix Ameron B20 adhesive according to directions.Observe pot life restrictions. <br /> 5) Apply adhesive to the pipe wall,to the edges of the hole and the interior of the <br /> saddle as illustrated in Fig.11-1. <br /> 6) Align the saddle over the hole and hold in place with two hose clamps. <br /> 7) Tighten the clamps alternately until secure and an adhesive bead surrounds the <br /> saddle. <br /> S) Below 40°F(5°C),cure the adhesive with a Chem Cure Pak or heating blanket. <br /> 9) Do not pressurize the containment line until the adhesive has fully cured. <br /> 15 <br />