TM 10-4930-204-13(g) Personnel engaged in purging operations will:1.Not wear wool, nylon, silk, rayon or othersimliar static electricity-generating clothing.2.Wear clean cotton clothing with no metalbuttons or fittings.Remove all contents from pockets.3.Wear rubber boots.4.Use cotton waste for cleaning purposes.Othermaterial may generate static electricity.(4) Preparationofequipment.(a) Completely drain each fuel tank or fuel tankcompartment, all piping, pumps, meters, filters, and segregatorsas applicable.(b) Remove all accessory items such as gages andfloats which might entrap fuel.(c) Close or seal all drains.(It may be necessary tolocally fabricate covers for some types of drains.)(d) Fill fuel tank and overflow for five minutes withcold water.(e) Drain fuel tank completely.(f) Close or seal drains.Insufficient amount of chemical will result in anincomplete purging.Accurate computations ofamount of chemical to be added must be made priorto the purging.Once purging has begun, do notstop until process if complete.(g) For each 100 gallon (379 liter) capacity, add 40fluid ounces (1200 ml) to the fuel tank.(This is equivalent to 8fluid ounces (240 ml) of concentrate for a 20 gallon (76 liter) fueltank.)(h) Fill fuel tank to top with water.Do notoverflow.(i) Insert air line into fuel tank filler neck openingand agitate solution with 3 to 5 psi (0.21 to 0.35 kg/sq cm) of airfor 5 minutes.Frequently air hose around in tanks, covering as mucharea as possible, especially near the bottom and around baffles.5-49
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