Ask X3What does 49 CFR 173.334 (Organic phosphates mixed with compressed gas) require?
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According to 49 CFR 173.334, organic phosphates (such as hexaethyl tetraphosphate, parathion, tetraethyl dithio pyrophosphate, and tetraethyl pyrophosphate) mixed with a non-flammable compressed gas must meet the following specific requirements for motor-carrier transport:
* Composition & Limits: The mixture cannot contain more than 20 percent by weight of organic phosphate.
* Approved Cylinders: The mixture must be packaged in DOT 3A240, 3AA240, 3B240, 4B240, 4BA240, 4BW240, or UN cylinders.
* Filling Limits: Each cylinder can be filled with a maximum of 5 kg (11.0 lb) of the mixture, with a maximum filling density of 80 percent of the water capacity.
* Cylinder Equipment Restrictions: Cylinders cannot be equipped with an eduction tube or a fusible plug. Any valve used must be of a type approved by the Associate Administrator.
* Outer Packaging & Drop Protection: Cylinders must be overpacked in a strong outer packaging (such as a box or crate) that protects the valves or closing devices from damage.
* Generally, no more than four cylinders may be packed in a strong outer packaging (or fiberboard box).
* Alternatively, up to twelve cylinders may be packed in a strong wooden box if the valves are adequately protected.
* All outer packagings must be strong enough to prevent deformation, breakage, or leakage of the inner packagings and valves if the completed package is dropped 1.8 meters (6 feet) onto a non-yielding surface like concrete or steel, impacting at its weakest point.