BS ISO 18589-7 : 2013

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols, and units
4 Principles
5 Equipment
6 Procedure
7 Quality assurance and quality control program
8 Expression of results
9 Test report
Annex A (informative) - Influence of radionuclides
        in air on the result of surface or mass activity
        measured by in situ gamma spectrometry
Annex B (informative) - Influence quantities
Annex C (informative) - Characteristics of germanium
        detectors
Annex D (informative) - Field-of-view of an in
        situ gamma spectrometer as a function of
        the photon energy for different radionuclide
        distributions in soil
Annex E (informative) - Methods for calculating
        geometry factors and angular correction
        factors
Annex F (informative) - Example for calculation
        of the characteristic limits as well as the best
        estimate of the measurand and its standard
        uncertainty
Annex G (informative) - Conversion factors for
        surface or mass activity to air kerma rate
        and ambient dose equivalent rate for different
        radionuclide distribution in soil
Annex H (informative) - Mass attenuation factors
        for soil and attenuation factors for air as a
        function of photon energy and deviation of
        G(E,V) for different soil compositions
Bibliography

Describes the identification of radionuclides and the measurement of their activity in soil using in situ gamma spectrometry with portable systems equipped with germanium or scintillation detectors.