I.S. EN ISO 20042:2021
Current
The latest, up-to-date edition.
Measurement of radioactivity - Gamma-ray emitting radionuclides - Generic test method using gamma-ray spectrometry (ISO 20042:2019)
Hardcopy , PDF
English
22-08-2021
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Principle
6 Validating measurements by gamma-ray spectrometry
7 Nuclear decay data
8 Detector energy and efficiency calibration
9 Sample container
10 Procedure
11 Expression of results
12 Test report
Annex A (informative) Quality assurance and quality control program
Annex B (informative) Corrections to the analysis process
Annex C (informative) Uncertainty budget
Annex D (informative) Detector types
Annex E (informative) Example: Calculation of 137Cs activity content and characteristic limits in an aqueous sample
Annex F (informative) Example: Simulating correction factors for sample positioning, geometry, matrix, density and true summing
Bibliography
This document describes the methods for determining the activity in becquerel (Bq) of gamma‑ray emitting radionuclides in test samples by gamma-ray spectrometry.
| Committee |
ISO/TC 85
|
| DocumentType |
Test Method
|
| Pages |
70
|
| ProductNote |
The date of any NSAIprevious adoption may not matchthe date of its original CEN/CENELEC document THIS STANDARD ALSO REFERS TO :IEC 1452:1995
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| EN ISO 20042:2021 | Identical |
| ISO 20042:2019 | Identical |
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