For low temperature work, a cold well in the glove box floor may be required. This consists of a working vessel placed in the glove box floor, and a secondary insulated vessel outside of the glove box.

The secondary vessel, the dewer, is partially filled with liquid nitrogen, dry ice or some other chill medium, and fitted over the protruding working vessel.

As cold wells are normally supplied as original equipment to a new glove box, they are manufactured to order. This has the advantage that they can then be custom supplied to suit individual needs of depth and diameter.

The cold well is supplied with a cover plate, which fits flush with the glove box floor allowing for normal working when not in use.

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