Enclosure glove boxes

The characterization of the engineering controls that are relevant to the exposure to be monitored (i.e., local exhaust hoods, enclosures, glove boxes, lab hoods, HEPA vacuums, etc.)... 

Glove box A sealed enclosure used for handling toxic products by means of long impervious gloves sealed to form part of the enclosure. 

A tenfold increase of the intensity may be obtained at the cost of a somewhat reduced thermal stability by omitting the draft shield and mounting the shutter and lamp assembly directly on top of the sample holder enclosure block. Since the heat production of the fluorescent lamp is very small the whole irradiation equipment could be mounted within the standard glove-box. 

General-purpose inert-atmosphere glove boxes are available commercially, so it rarely makes sense to construct a system of this type locally.2 Nevertheless, a knowledge of the construction features is useful for the choice of an appropriate glove box and for the maintenance and modification of an existing inert-atmosphere enclosure. In addition, there are some special types of glove boxes which must be constructed by the user because they are not generally available commercially. 

Isolation complete enclosure of the allergen, e.g. handling complex platinum salts in glove boxes... 

Three types of transfer between the electrochemical cell and the UHV enclosure have been used. In the first, the electrochemical cell is built on to the stainless steel system and the electrode is transferred directly. In the second, a glove box is used as an intermediate to the transfer which can then be made to a conventional electrochemical cell. In the third type, there is no direct transfer but electrodes prepared under identical conditions are studied in parallel by UHV electrochemical methods. 

Experience at JACADS and Tooele indicates that the handling of monitions is a low-risk operation. The munition (inside its fiberglass container) is placed in a glove box and monitored for the presence of agent prior to its removal from the container. Thereafter, the munition is handled for propellant removal in the open (i.e., not in a special ventilation enclosure). Before total-solution operations for the Parsons/ Honeywell technology package can begin at Pueblo, a QRA will be performed to ensure that risks in the PRR are low. 

Three barriers, each a combination of a static containment barrier (e.g., mechanical structure, glove box, or fuel rod) and a dynamic containment barrier (e.g., ventilation, air flow respiratory pressure), assure the safe enclosure of radioactivity. The air pressure increases at each stage, from the glove boxes to the working rooms, to the building or corridors, and then to the outer atmosphere. 

Are toxic materials handled in fume hoods, glove boxes, or other ventilated enclosures ... 

In all laboratory experiments and procedures, it is important that hazards be controlled or managed primarily by engineering measnres, snch as a laboratory hood, local exhaust ventilation, or a glove box. Ventilated enclosures can often be used for weighing chemicals. Best practices also include having a laboratory under negative pressure with respect to the adjacent hallway so that hazardous chemical vapors are kept in the laboratory. In same cases, such as with the use of radioactive materials, personal hand, foot, or full-body monitors may be needed to control the spread of material into areas outside controlled laboratory facilities. 

Glove Box For some enclosures, there are ports with gloves sealed to the ports. A worker uses the gloves to reach inside the sealed enclosure and perform tasks. This type of enclosure is a glove box. 

The plutonium inventory monitoring system (PIMS) is a network of 142 He neutron detectors in moderating enclosures, which are installed in a plutonium-powder process area at fixed positions outside of process glove boxes and the ventilation system (Simpson et al. 1998 Parvin 2007 Whitehouse et al. 2004). The collected neutron counts are processed in a matrix approach to image the neutron field of the process area. Any change to the in-process inventory will be detected and can be accounted for on a near real-time basis. The PIMS will also be used to verify the clean out and to measure any residual material. The PIMS is operator-owned equipment used jointly with the inspectorate. Appropriate authentication measures are therefore in place to validate the measurement results. 

Total enclosures include glove-boxes and Class III microbiological safety cabinets. Here there is a physical barrier in the form of a rubber glove and a high-efficiency filter between the interior of the enclosure and the operator and workplace. Such enclosures are for work involving very hazardous substances or requiring special atmospheres to protect the specimens being handled. 

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