Glovebox Windows

DOE-STD-1066-99

atmosphere system in accordance with the applicable NFPA Standard as

supplemented by this standard.

15.2.1.3

All radiation shielding material added to the glovebox should be

noncombustible. If combustible material must be used, it should be

encased with a noncombustible material.

15.2.2

Glovebox Windows

The number of glovebox windows should be limited to that required to provide the

visibility necessary to ensure that safe operations, cleanup, and maintenance

activities can be performed.

15.2.2.1

Window Materials

Glovebox windows should be constructed of wire glass, fire-rated

glass, or laminated safety glass. The window gasketing material

should be noncombustible, fire-retardant treated, or heat resistant.

A comparison of glovebox window material is provided in

Appendix I.

If laminated safety glass is used in locations where radiation levels

may be high enough to cause yellowing of the plastic, a cerium

additive should be specified to prevent yellowing of the plastic

laminate.

If either the glovebox atmosphere or operations require that an

alternate window material be used, fire-retardant treated

polycarbonate may be used. If fire retardant polycarbonate must be

used, it should be sandwiched with noncombustible material (such

as wire or tempered glass) whenever possible. As an alternative,

the exterior side of the polycarbonate should be protected with a

noncombustible material to guard against the effects of exposure

fires.

15.2.3

Gloveports

15.2.3.1

Gloveports should be installed in the stainless steel sides of the glovebox.

If this is not possible, the gloveports should be installed using laminated

safety glass or a fire retardant polycarbonate plastic and the quantity of

plastic used should be limited only to that required to safely mount the

gloveports.

15.2.3.2

Metal covers should be provided for each of the glove openings. Covers

should be constructed of stainless or carbon steel. The covers should be

held in place by a latch or other device constructed of noncombustible

material suitable for the application. Utilization of the glovebox covers

serves to protect against loss of integrity at a gloveport due to either

internal or external fire exposure.