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A.

Acceptable Manufacturer: SANTA ROSA LEAD PRODUCTS, INC., , TEL: 800-916-5323 / 707-431-7757, FAX: 707-431-1749, Email: sales@santarosalead.com, Web: http://www.santarosalead.com

1.

Substitutions:  Not permitted.

2.

Substitutions:  All other manufacturers shall submit substitution request in accordance with “Section 01 25 00 - Product Substitutions.”

2.2

RADIATION PROTECTION SYSTEM DESCRIPTION

A.

Design Requirements:

1.

Provide materials and workmanship, including joints and fasteners, that maintain continuity of radiation protection at all points and all directions equivalent to materials specified in thicknesses and locations indicated.

a.

Employ a physicist knowledgeable in radiation protection for medical facilities to determine thicknesses and configurations of lead-lined materials.

2.

Lead-Lined Assemblies:  Provide lead thickness in gypsum board, plywood, doors, door frames, window frames, and other items located in lead-lined assemblies, not less than that indicated for assemblies in which they are installed unless indicated otherwise.

3.

Lead Glazing:  Provide lead equivalence not less than that indicated for assembly in which glazing is installed unless indicated otherwise.

2.3

LEAD SHEET

A.

Lead Sheet:  99.9 percent or better pure unpierced virgin lead, free from dross, oxide inclusions, scale, laminations, blisters, and cracks.

1.

Sheet Lead shall meet or exceed the Federal Specification QQL-201 F Grade C and ASTM B749-03 Standard Specification for Lead and Lead Alloy Strip, Sheet, and Plate Products, see NCRP reports #145, #147 and #151.

2.

Thickness:  As determined by Radiation Protection Survey, but not less than 1/16 inch (1.5 mm) if not indicated.

3.

Variation in Sheet Thickness:  Not to exceed five (5) percent.

2.4

LEAD PLATE

A.

Lead Sheet:  99.9 percent or better pure virgin lead, free from dross, oxide inclusions, scale, laminations, blisters, and cracks.

1.

Sheet Lead shall meet or exceed the Federal Specification QQL-201 F Grade C and ASTM B749-03 Standard Specification for Lead and Lead Alloy Strip, Sheet, and Plate Products, see NCRP reports #145, #147 and #151.

2.

Thickness:  As indicated on Drawings.

3.

Variation in Sheet Thickness:  Not to exceed five (5) percent.

2.5

LEAD BRICKS

A.

Interlocking Lead Bricks:  99 percent pure virgin lead, free from dross, oxide inclusions, scale, laminations, blisters, and cracks.  Fabricate bricks with tongue and groove sides:

1.

Size:  3/4 inch (19 mm) by 4 inches (102 mm) by 12 inches (305 mm).

2.

Size:  1 inch (25 mm) by 4 inches (102 mm) by 12 inches (305 mm).

3.

Size:  1-1/2 inches (38 mm) by 4 inches (102 mm) by 12 inches (305 mm).

4.

Size:  2 inches (51 mm) by 4 inches (102 mm) by 8 inches (204 mm).

RADIATION PROTECTION13 49 00 - 5

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