Chemical service trailer

In addition to toxic, incendiary, and smoke ammunition and bombs, as well as chemical warfare offensive weapons and equipment, the CWS was responsible for the procurement of a variety of service equipment. The latter included a truck mounted with a swinging boom crane, a chemical service truck, a chemical service trailer, a unit for mixing toxic and incendiary agents in the field, and a set for maintaining and repairing chemical warfare equipment in the field. Several of these items presented unusual problems of development and procurement. Table 8)... 

DOT stands for the U.S. Department of Transportation, the agency that regulates the transport and specification of gas cylinders in the U.S. The next entry, for example, 3AA, is the specification for the type and material of the cylinder. The most common cylinders are 3A, 3AA, 3AX, 3AAX, 3T, and 3AL. All but the last refer to steel cylinders, while 3AL refers to aluminum. The individual specifications differ mainly in chemical composition of the steel and the gases that are approved for containment and transport. 3T deals with large bundles of tube trailer cylinders. The next entry in this field is the service pressure, in psig. 

A traffic accident causes a chemical lawn service tank trailer to tip over and instantly spill into a storm drain that empties into a small river. Assume the trailer holds 2 kg of a pesticide, dissolved in 4 m3 of water. The river velocity is 0.3 m/sec, the river has a uniform cross-sectional area of 2.7 m2, and DL is 300 m2/min. For a point 1.3 km downstream,... 

Work during the 1960s on the CB Pressurized Pod resulted in the standardization of the M51 Shelter System in 1971. The unit was an easily transportable, pressurized enclosure. It could be air-dropped or towed to provide protection from chemical and biological agents in the field for combat, combat support, and combat service support troops. The M51 was a double-walled, air-inflated, self-supporting shelter and airlock structure. When erected, the shelter was semicircular in cross-section with a maximum inside height of 7.5 ft, with inside dimensions of 15 x 14 ft. An airlock entrance (with a set of double doors at each end) on the front was 11 (1) x 4.2 (w) x 6.7 (h) ft in dimension. The filter and support equipment were mounted on a two-wheeled trailer.186... 

Chemical analyses can be condncted in a laboratory remote from the locations where the samples are taken or in the field near the sampling sites (on-site). On-site analyses can be conducted in a field laboratory, which may be a temporary building or a track trailer, van, or recreational vehicle equipped with utilities services and analytical equipment. Another type of field laboratory is within a materials or fluids processing facility. Alternatively, field artalyses can be conducted with mobile or portable instrumerrtation carried in a small van, sport utility vehicle, moved with a hand cart, or carried by a person. Each of these strategies has some advantages and some disadvantages. 

In the zone of interior the Armored Force Board had never been enthusiastic about any flame-throwing tank that was a special-purpose weapon, that Is, if it had the flame thrower as its main armament, or if it had a distinguishing silhouette. The British Crocodile met the first requirement, but its fuel-carrying trailer certainly made it readily identifiable. In any event, the board urged the Chemical Warfare Service to concentrate its efforts on the auxiliary model, one that main- tained the normal armament of the vehicle, which was then under development. The result was an auxiliary flame thrower which was interchangeable with the bow machine gun of either the light or medium tank. 

In 1942 the CWS issued five trailer vans to the First Chemical Laboratory Company which installed its laboratory equipment in them. The company found that the vans lacked sufficient interior space for the work, they were unwieldly to transport on railroads, they were difficult to conceal from enemy observation in the field, and they were hard to handle on poor roads. After several months the service dropped the idea of putting field laboratories on wheels. ... 

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