BS 4513:1969

Co-operating organizations
Foreword
Specification
1 General requirements
1.1 Scope
1.2 Terminology
1.3 Materials
1.4 Freedom from defects
1.5 Inspection
1.6 Handling facilities
1.7 Tolerances
1.8 Identification
2 Specific designs
2.1 Chevron system (Type V)
2.2 Rounded mating surface system (Type R)
Tables
1 Schedule of bricks - Chevron system (Type V)
2 Schedule of bricks - Rounded mating surface (Type
     R)
Figures
1 Type V chevron wall bricks
2 Numbering system for Type V bricks (both 50 mm and
     100 mm thicknesses)
3 Type R rounded mating surface wall bricks
4 Numbering system for Type R bricks (50 mm and 100
     mm thicknesses only)
5 Numbering system for Type R bricks (150 mm, 200 mm
     and 250 mm thicknesses only)
6 Diagrammatic illustration of functional units

Specification with metric dimensions for two systems of interlocking lead bricks for building permanent or temporary shielding walls, including numbering system with illustrations, and schedule for ordering purposes.

This British Standard specifies requirements for the design of the basic bricks of two systems of lead shielding bricks.

It does not give dimensional details of functional units such as window assemblies, aperture bricks, etc., although Figure 6 gives diagrammatic illustrations of the various functional units commonly in use.

The scope of this standard does not include advice on methods of constructing shielding barriers from the bricks, or on the shielding thickness required. Advice on the former may be obtained from the manufacturers of the bricks, and advice on the latter from the Radiological Protection Service.