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A.

Steel/Lead/Steel Laminated Panels:  

1.

Outer Steel Case Thickness:  Thickness as indicated or as recommended by manufacturer.

2.

Adhesive:  High-strength epoxy adhesive.

3.

Core:  Pure lead core up to 3” thick.

4.

Edges:  Standard steel shapes as required.

5.

Sizes:  [Up to 80” x 120”]

2.10

RADIATION SHIELDING LEADED GLASS

A.

Radiation Shielding Leaded Glass:  Clear leaded glass containing 48 percent lead oxide (by weight) and 15 percent barium.  Thickness as required to provide radiation protection equivalent to that provided by sheet lead in partition in which lead glass is installed.  

1.

Thickness: 8.0 mm (5/16”) yielding an equivalency of 2.0 mm (1/16”).

2.

Thickness:  [list other equivalencies and thicknesses]  

2.11

RADIATION SHIELDING LEADED ACRYLIC

A.

Radiation Shielding Leaded Acrylic:  Clear Pb lead-plastic.

1.

Thickness:  [7.0 mm yielding an equivalency of 0.3 mm.]

2.

Thickness:  [____ mm  yielding an equivalency of ______ ]

2.12

LEAD-LINED TELESCOPIC VIEW WINDOW FRAMES

A.

Lead-Lined Telescopic View Window Frames:  Construct of 16 gage welded steel frames adjustable from 4 inches to 6¼ inches wall thickness.  Frames shall be capable of accepting any thickness of radiation shielding leaded glass, radiation shielding X-Ray safety glass, or radiation shielding leaded acrylic.  Frame corners shall be fully welded and ground smooth.  

1.

Provide radiation protection equivalent to that provided by sheet lead in partition in which view window is installed.

2.

Provide ½” (13 mm) removable, reversible stops.  Predrill and countersink to allow for:

a.

One pane of 5/16” leaded shielding glass.

b.

Two panes of 5/16” leaded shielding glass.

c.

One pane of 9/16” lead shielding glass.

d.

[select thickness]

3.

Provide frames with voice transmission slots.

2.13

LEAD-LINED TWO-PIECE SLIP FRAMES

A.

Lead-Lined Telescopic View Window Frames:  Two-piece slip lead lined frames manufactured to a specific throat dimension to suit wall thickness.  Frames shall be capable of accepting any thickness of radiation shielding leaded glass, radiation shielding X-Ray safety glass, or radiation shielding leaded acrylic.  Frame corners shall be fully welded and ground smooth.  

1.

Throat Dimension:  As required to suit wall thickness.

2.

Metal Thickness:  [16] [14] gauge.

3.

Provide radiation protection equivalent to that provided by sheet lead in partition in which view window is installed.

4.

Provide ½” (13 mm) removable, reversible stops.  Predrill and countersink to allow for:

RADIATION PROTECTION13 49 00 - 8

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