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C t " Do not connect the air supply directly to the annular Do not pressurize 4',6',8'and 10'diameter tanks over 5 space monitoring fitting or tank damage will result. psig(35 kPa).Do not pressurize 12'diameter tanks over 3 • Prepare for testing. psig(21 kPa).Tank damage or physical injury may result - Replace all fitting plugs with plugs suitable for the The following instructions apply to all air tests described product to be stored in the tank. in Sections D1 to D9. Some Non Petroleum tanks are not - Clean factory pipe dope from plugs and fittings. field air-testable and require a post installation water test Apply pipe dope suitable for the material being VISUAL AIR/SOAP TEST - Reinstall and tighten fitting plugs. To be performed on all tanks after unloading from the truck. - Assemble the required number of"Tank Test • Single-Wall and Dry Annular Space Tanks:air/soap Manifolds"(Figure C-1)and"Annular Space Gauge tests must be performed at the job site prior to and Valves"(Figure C-2). installation to verify the absence of damage. (Sections D1 to D6) - Gauges must have a maximum full-scale reading - For tanks shipped with annular of 15 psig(40 kPa)with %.psig (1 kPa)or smaller pp space under vacuum, increments. refer to Supplemental Documents-Section R. - Pressure-relief device must be sized and set to • Liquid Filled Annular Space Tanks:air/soap tests on prevent the tank from being pressurized in excess accessories and fittings can be performed after the of the maximum allowed test pressure tank is in the excavation. (Sections D7 to 139) (5 psig/35 kPa maximum or 3 psig/21 kPa • All tanks must be vented at all times except as defined for 12'tanks). during testing. FOR ALL AIR TESTS: • All petroleum tanks with a UL label and all potable Do not stand on or approach endcaps,manways,or water tanks must be air tested prior to installation. fittings while pressurizing tanks. Do not lift or hoist tank under pressure.These actions could result in • Use a contractor supplied"Tank Test Manifold" death or serious injury. connected to a tank primary fitting (see Figure C-1). Figure C-1 Do not pressurize 4', 6', 8'and 10'diameter tanks over 5 psig(35 kPa). Do not pressurize 12'diameter Tank Test Manifold tanks over 3 psig(21 kPa). Air supply valve open ? Air Supply Valve Closed Pressure gauge readings can be affected by changes Air Supply in ambient air temperature.Allow for pressure Gauge fluctuations when tanks are subject to temperature changes. • Prepare Soap Solution. Backup) 6 - weather soap Warm weathsolution Air Supply Gauge Pressure-Relief p Device • 5 gallons of water Primary • 8 ounces of household dishwashing Tank Ftgng detergent For tanks with any dry annular space configurations, - Freezing conditions soap solution including double-wall bulkheads: 4 gallons of water • Use a contractor supplied"Annular Space Gauge and 8 ounces household dishwashing detergent Valve'connected to the annular space fitting 1 gallon windshield washer solution (see Figure C-2). • The entire tank surface must be covered with the Figure C-2 soap solution and visually inspected for leaks, as Annular Space Gauge and Valve indicated by the presence of active air bubbles. • Anytime bubbles are observed around fittings, plugs, valve open Valve Closed and gaskets;tighten and retest. Pressure • In the unlikely event a tank leak is discovered, Gauge discontinue the installation and immediately call CSI Field Service to schedule a repair. Annularspace • If the tank is a Non Petroleum tank and requires or Double-Wall Bulkhead Fitting post installation water testing,follow the procedures in Section D10. 6