Safety enclosure

Radiation safety enclosure X-ray shutter and attenuator assembly... 

R. P. Harvey. In Proceedings of the Development and Use of Fume Cupboards, Fume Hoods and Ventilated Safety Enclosures in Laboratories . Symposium Organised by the Laboratory of the Government Chemist, London, March 1979, pp. 32-59. 

ALWAYS check that all the safety shutters are closed before opening the safety enclosure and making adjustments. X-rays are very dangerous and every safety precaution should be taken when using them. A new user should under no circumstances start using X-ray equipment without experienced guidance. 

Fig. 10.21. Safety enclosure for a high-pressure fluorine tank.

Many operations within the laboratory start with weighing. It is difficult to undertake precise weighing in conventional laboratory fume hoods, as the airflow and vibration inside an operating fume hood often disturb the balance. In order to accommodate the need for an engineered control at this scale of operation, dust control systems have evolved known as ventilated weighing safety enclosures or powder weighing hoods. Key characteristics of a ventilated weighing safety enclosure include ... 

The construction of transformers will be either liquid insulated in a steel tank or cast resin in a safety enclosure. Either type can be used for outdoor and indoor services, although additional weatherproofing will be needed for cast resin units. 

Ammonia storage tank leak Injurious to personnel and environment Design and constmction of storage system must be as per statutory regulations Provide safety enclosures and devices as per international standards... 

Safety enclosure for protecting the elevator (this is a must). 

Safety Screen or Safety Enclosure that adequately shields the operator from the distillation apparatus in the event of mishap. Reinforced glass, 6 mm thick clear plexiglass, or a clear material of equivalent strength is recommended. 

Figure 12.5 A schematic diagram of some of the major elements of a typical low-pressure chemical vapor deposition system. Note that the entire process is typically contained within a safety enclosure because many of the reactants as process gases are either flammable or toxic. A toxic gas detector scans the interior of the enclosure, especially around the gas piping, for leaks. The scrubber reacts the source materials that are left over after passing through the reactor tube to render them harmless. Typically the valves for all sources are operated electronically so that the user does not need to open the safety enclosure except to load substrates on the susceptor. The system shown here includes a single substrate on a tilted susceptor. Batch processes are similar except in the arrangement of substrates in the reactor tube. Other reactor tube designs are also used. More specific reaction examples are given in Section 12.8.

CVD process systems generally include a safety enclosure that confines hazardous gases and allows detection of leaks to protect the users. 

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