BS EN ISO 13165-2:2022 – TC:2024 Edition
$186.33
Tracked Changes. Water quality. Radium-226 – Test method using emanometry
| Published By | Publication Date | Number of Pages |
| BSI | 2024 | 60 |
This document specifies a test method to determine radium-226 (226Ra) activity concentration in all types of water by emanometry. The test method specified is suitable for the determination of the soluble, suspended and total 226Ra activity concentration in all types of water with soluble 226Ra activity concentrations greater than 0,02 Bq l?1. The decay chains of 238U and 232Th are given in Annex A. Figure A.1 shows the 238U and its decay chain.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | 30485179 |
| 35 | A-30429613 |
| 36 | undefined |
| 40 | Foreword |
| 41 | Introduction |
| 43 | 1 Scope 2 Normative references 3 Terms, definitions and symbols 3.1 Terms and definitions |
| 44 | 3.2 Symbols |
| 45 | 4 Principle |
| 46 | 5 Reagents and equipment 5.1 Reagents 5.2 Equipment 6 Sampling and storage 6.1 Sampling |
| 47 | 6.2 Sample storage 7 Procedures 7.1 Sample preparation 7.2 Measurement conditions |
| 48 | 7.3 Counting procedure 8 Quality assurance and quality control programme 8.1 General 8.2 Influence parameters 8.3 Instrument verification and calibration |
| 49 | 8.4 Method verification 8.5 Demonstration of analyst capability 9 Expression of results 9.1 Activity concentration of water-soluble 226Ra |
| 50 | 9.2 Standard uncertainty of activity concentration 9.2.1 General 9.2.2 Decision threshold 9.2.3 Detection limit |
| 51 | 9.3 Limits of the coverage intervals 9.3.1 Limits of the probabilistically symmetric coverage interval 9.3.2 Shortest coverage interval 9.4 Example |
| 52 | 10 Test report |
| 54 | Annex A (informative) Decay chains of 238U and 232Th |
| 56 | Annex B (informative) Bubbler |
| 57 | Annex C (informative) Glass scintillation cell coated with silver-activated zinc sulfide |
| 58 | Bibliography |
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