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BS ISO 20041-1:2022

BS ISO 20041-1:2022

$189.07

Tritium and carbon-14 activity in gaseous effluents and gas discharges of nuclear installations – Sampling of tritium and carbon-14

Published By Publication Date Number of Pages
BSI 2022 46
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
14 4 Symbols
15 5 Sampling location
5.1 General
16 5.2 General selection of sampling locations
5.3 Criteria for the homogeneity of the sampling locations
17 5.4 Design of gaseous effluent discharge systems for sampler positioning
6 Sampling systems
6.1 General
6.2 Evaluation of an existing sampling system
18 6.3 Volumetric flow rate measurement
6.3.1 General
6.3.2 Effluent flow rate measurement
6.3.3 Sampling volume and flow rate measurement
19 6.3.4 Leak tightness checks
20 6.4 Gas and vapour transport and sampling
6.4.1 General
6.4.2 General provisions
22 6.4.3 Special case of tritium
23 6.4.4 Special case of carbon‑14
6.5 Sampling techniques
6.5.1 General
6.5.2 Sampling by bubbling technique (tritium and carbon‑14)
28 6.5.3 Sampling using molecular sieves (tritium and carbon‑14)
32 6.5.4 Sampling by condensation (only tritium)
7 Sampling sheet and follow-up sheet
7.1 General
7.2 Sampling sheet
33 7.3 Follow-up sheet
34 Annex A (informative) Example of a sampling sheet (bubbling technique/molecular sieve method)
36 Annex B (informative) Techniques for measurement of flow rate through ducts and stacks
40 Annex C (informative) Range of use of tritium and carbon‑14 sampling devices in gaseous effluents
41 Annex D (informative) Feedback on penetration values of gases in sampling systems
44 Bibliography

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BS ISO 20041-1:2022
$189.07