BS 5869:1980

National foreword
Cooperating organizations
Specification
1 Scope and field of application
2 References
3 Characteristics and methods for producing the
         radiations
Tables
1 Review, X and gamma reference radiations
2 Calibration conditions of filtered X reference
         radiations
3 Metal properties
4 Inherent filtration
5 Radiators and filters used for K-fluorescence
         reference radiations
6 Exposure rates and extraneous radiation
7 Radionuclide properties
8 Specific activity and recommended chemical form
         of radioactive nuclides
9 Example for composition of diaphragm alloy used
         in the collimator of figure 1
Figures
1 Example of a collimated installation
2 - 10 Characteristics of narrow-spectrum series of
         filtered X radiations
11 - 17 Characteristics of a wide-spectrum series of
         filtered X radiations
18 Uranium spectrum
19 Schematic diagram of a K-fluorescence X-ray
         installation
Bibliography

Specifies X and gamma reference radiations for calibrating protection level dosemeters and dose ratemeters. Exposure rates covered are 10$u-⁶ C.kg$u-¹.h$u-¹ to 10$u-² C.kg$u-¹.h$u-¹.