National foreword
National Annex NA (informative) Relationship between
European Standards and International
Standards
National Annex NB (informative) Bibliography
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Principle
5 Gamma-spectrometry equipment
6 Sample container
7 Procedure
7.1 Packaging of samples for measuring purposes
7.2 Laboratory background level
7.3 Calibration
7.4 Measurements of and corrections for natural
radionuclides
8 Expression of results
8.1 Calculation of the activity per unit of mass
8.2 Standard uncertainty
8.3 Decision threshold
8.4 Detection limit
8.5 Confidence limits
8.6 Corrections for contributions from other
radionuclides and background
9 Test report
Annex A (informative) Calculation of the activity per unit
mass from a gamma spectrum using a linear
background subtraction
Annex B (informative) Analysis of natural radionuclides
in soil samples using gamma spectrometry
Bibliography