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BS ISO 13168:2023:2024 Edition

$142.49

Water quality. Simultaneous determination of tritium and carbon 14 activities. Test method using liquid scintillation counting

Published By Publication Date Number of Pages
BSI 2024 28
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PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
10 3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
12 4 Principle
5 Sampling and storage
5.1 Sampling
13 5.2 Sample storage
6 Reagents and equipment
6.1 Reagents
6.1.1 Water for blank sample
6.1.2 Calibration source solutions
14 6.1.3 Scintillation solution
6.1.4 Quenching agent
6.2 Equipment
7 Procedure
7.1 Sample preparation
7.2 Preparation of the counting vial
15 7.3 Counting procedure
7.4 Control and calibration
16 7.5 Measurement conditions
7.6 Interference control
17 8 Expression of results
8.1 General
8.2 Activity concentration of tritium
8.3 Activity concentration of carbon 14
18 8.4 Combined standard uncertainty for tritium
8.5 Combined standard uncertainty for carbon 14
19 8.6 Decision threshold for tritium
8.7 Decision threshold for carbon 14
8.8 Detection limit for tritium
20 8.9 Detection limit for carbon 14
8.10 Limits of the coverage intervals
8.10.1 Limits of the probabilistically symmetric coverage interval
21 8.10.2 Limits of the shortest coverage interval
8.11 Calculations using the activity per unit of mass
9 Test report
23 Annex A (informative) Example
25 Bibliography
BS ISO 13168:2023
$142.49