MIL-T-62357 Trailers, Tank: Potable Water And General Purpose, 500 Gallon, Two And Four-Wheel, Modified CommercialThis specification covers 500 gallon capacity, two-wheel and four-wheel wagon type tank trailers for hauling and dispensing liquids see 6.1 and 6.3. Vehicles procured under this specification are commercial items which are warranted by the manufacturer as specified in procurement documents.

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MIL-T-62357A

(f) Failure of any vehicular safety device such as brakes or electrical circuits

(g) Evidence of structural weakness in any part of the vehicles, vehicle components, accessories or welds.

(h) Loose mountings of parts or accessories due to workmanship or vehicular operation.

4.3.5 Pump test. When an engine driven pump is specified, the pumping equipment shall be tested with water to determine conformance to the requirements specified in 3.9.7.

4.3.6 Breakaway test. On air hydraulic brake equipped vehicles, breakaway conditions shall be simulated by disconnecting brake supply lines and the brake system relay emergency valve shall provide and maintain brake application for not less than 15 minutes. At the end of the 15 minutes, air pressure bleed-down shall provide not less than a 5-pound per square inch (psi) drop in air pressure.

4.3.7 Emergency venting (type II). On type II trailer, the exposed surface area of the tank shall be measured and the capacity of each vent determined by its required stamping and certification (see DOT 178.345, 346). The total venting capacity shall be calculated and compared to the surface area to determine conformance to the requirements of DOT Safety Regulation 178.346.

4.3.8 Availability of regulations. The contractor shall make available to the Government at the point of final acceptance a current copy of DOT Safety Regulation 178.345 and DOT Safety Regulation 178.346. The documents shall be surrendered to the Government representatives for use in conjunction with the contract for the duration of the contract.

4.3.9 Joint specimens. The contractor shall offer for Government inspection and approval the joint test specimens subjected to the tensile test required by DOT Safety Regulation 178.345, together with certification regarding the date of preparation and testing. The test specimens shall be current in accordance with 178.345.

* 4.3.10 Toxic data and formulations. The supplier shall furnish a copy of the approval by the procuring activity of the materials used in the construction of the vehicle (see 3.1.1.4). The vehicle shall be inspected and the manufacturer shall provide evidence that only the approved materials were used in the construction and treatment of the affected parts of the vehicle.

4.3.11 Production sample. Upon acceptance of the first production vehicle, it shall remain at the manufacturing facility as a production sample, and shall be the last vehicle shipped on the contract. The contractor shall maintain the vehicle in a serviceable condition for the duration of the contract.