232AFMAN 24-204(I)/TM 38-250/NAVSUP PUB 505/MCO P4030.19H/ DLAI 4145.311 DECEMBER 2001A7.3.22. MIL-D-23119 500-gallon capacity collapsible fabric drums authorized under 3.7. Five hundred (500)gallon fabric drums shipped on other than tactical/contingency/emergency missions must be drained to the greatestextent possible.A7.3.23. Bulk storage tanks completely drained according to paragraph 3.7.2.A7.4. Refrigerating Machine.A refrigerating machine assembled for shipment and containing 7 kg (15 pounds)or less of flammable liquid for operation in a strong, tight receptacle is excepted from specification packaging,marking, and labeling except for the PSN of the flammable liquid.A7.5. Aircraft Hydraulic Power Unit Fuel Tank.A7.5.1. Handling Instructions. In the event of a leak during transportation of hydrazine, crew members shoulduse their aircraft oxygen masks in a positive pressure mode.A7.5.2.Packaging Requirements. Aircraft hydraulic power unit fuel tanks containing a mixture of anhydroushydrazine and monomethyl hydrazine (M86 fuel) and designed for installation as complete units in aircraft areexcepted from specification packaging requirements if the units comply with one of the following:-The unit must consist of an aluminum pressure vessel made from tubing and having welded heads. Primarycontainment of the fuel within this vessel must consist of a welded aluminum bladder having a maximuminternal volume of 46 L (12 gallons). The outer vessel must have a minimum design gauge pressure of1.275 kPa (185 psi) and a minimum burst gauge pressure of 2.755 kPa (400 psi). Each vessel must be leak-checked during manufacture and before shipment and must be found leak proof. The complete inner unitmust be securely packed in noncombustible cushioning material, in a strong outer tightly closed metalpackaging that will adequately protect all fittings. The maximum quantity of fuel per unit and package is42 L (11 gallons).-The unit must consist of an aluminum pressure vessel. Primary containment of the fuel within this vesselmust consist of a welded hermetically sealed fuel compartment with an elastomeric bladder having amaximum internal volume of 46 L (12 gallons). The pressure vessel must have a minimum design gaugepressure of 5.17 kPa (750 psi). Each vessel must be leak-checked during manufacture and before shipmentand must be found leak proof. The complete inner unit must be securely packed in noncombustiblecushioning material, in a strong outer tightly closed metal packaging that will adequately protect all fittings.The maximum quantity of fuel per unit and package is 42 L (11 gallons).A7.6. Packaging for Class 3 Materials, Poisonous by Inhalation (Hazard Zone A or B). Package Class 3materials with an Inhalation Hazard (Hazard Zone A and B) as follows:A7.6.1. Package in DOT specification cylinders as identified in 49 CFR, part 178, subpart C, except thatspecification 8, 8AL, and 39 cylinders are not authorized. Cylinders must also meet the requirements of A3.3.2.A7.6.2. Pack in an inner drum (1A1, 1B1, 1N1, 1H1, or 6HA1), then place in an outer drum (1A2 or 1H2). Boththe inner and outer drum must be tested to the PG I performance level. The outer 1A2 drum must have a minimumthickness of 1.35 mm (0.053 inches). The outer 1H2 drum must have a minimum thickness of 6.30 mm (0.248inches). The capacity of the inner drum (1A1, 1B1, or 1N1) must not exceed 220 L (58 gallons). The inner drummust also meet the following requirements:-Satisfactorily withstand a hydrostatic pressure test (as outlined in 49 CFR, paragraph 178.605) of 550 kPa(80 psig).-Satisfactorily withstand a leak proof test (as outlined in 49 CFR, 178.604) using an internal air pressure at55 degrees C (131 degrees F) of at least twice the vapor pressure of the material to be packaged.- Have screw-type closures that meet all the following requirements:-Closed and tightened to a torque as prescribed by the closure manufacturer, using a device that iscapable of measuring torque.-Physically held in place by any means capable of preventing backoff or loosening of the closure byimpact or vibration during transportation.-Provided with a cap seal that is properly applied according to the cap seal manufacturer’s recommendations.The cap seal must be capable of withstanding an internal pressure of at least 100 kPa (15 psi).-Meet the following minimum thickness requirements:
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