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BS ISO 20045:2023

BS ISO 20045:2023

$167.15

Measurement of the radioactivity in the environment. Air: tritium. Test method using bubbler sampling

Published By Publication Date Number of Pages
BSI 2023 44
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms, definitions and symbols
10 3.1 Terms and definitions
11 3.2 Symbols, definitions and units
12 4 Principle
14 5 Influence quantities
6 Equipment
6.1 Description and requirements of the sampling system
15 6.2 Location of sampling head
6.3 Air flow rate, sampling duration and air volume sampling
6.4 Trapping water solution
6.5 Specifications for use
16 7 Procedure
7.1 Sampling
17 7.2 Sample collection and transportation
7.3 Receipt
7.4 Conservation
7.5 Tritium activity concentration measurement
8 Expression of results
8.1 General
18 8.2 Calculations for tritiated water vapour
8.2.1 Activity concentration
8.2.2 Decision threshold
19 8.2.3 Detection limit
8.2.4 Coverage intervals limits
20 8.2.5 Conditions of use
8.3 Calculation for tritiated gas compounds
21 8.3.1 Tritiated gas without significant HTO level
22 8.3.2 Tritiated gas compounds with significant HTO level
24 8.3.3 Coverage intervals limits
8.3.4 Conditions of use
25 9 Test report
27 Annex A (informative) Technical data for tritium
29 Annex B (informative) Determination of trapping efficiency
33 Annex C (informative) Preserving of tritiated water solutions
34 Annex D (informative) Example of sampling and calculations forms
37 Annex E (informative) Examples of calculations of air tritium activity concentrations
43 Bibliography

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BS ISO 20045:2023
$167.15