BS ISO 11665-4:2021
$167.15
Measurement of radioactivity in the environment. Air: radon-222 – Integrated measurement method for determining average activity concentration using passive sampling and delayed analysis
Published By | Publication Date | Number of Pages |
BSI | 2021 | 40 |
This document describes radon-222 integrated measurement techniques with passive sampling. It gives indications for determining the average activity concentration of the radon-222 in the air from measurements based on easy-to-use and low-cost passive sampling, and the conditions of use for the sensors.
This document covers samples taken without interruption over periods varying from a few days to one year.
This measurement method is applicable to air samples with radon activity concentrations greater than 5 Bq/m3.
PDF Catalog
PDF Pages | PDF Title |
---|---|
2 | undefined |
6 | Foreword |
7 | Introduction |
8 | 1 Scope 2 Normative references 3 Terms, definitions and symbols 3.1 Terms and definitions |
9 | 3.2 Symbols 4 Principle |
10 | 5 Equipment 6 Sampling 6.1 Sampling objective 6.2 Sampling characteristics 6.3 Sampling conditions 6.3.1 General 6.3.2 Installation of the sensor |
11 | 6.3.3 Sampling duration 6.3.4 Volume of air sampled |
12 | 7 Detection 8 Measurement 8.1 Procedure 8.2 Influence quantities 8.3 Calibration 8.4 Average radon activity concentration 8.5 Standard uncertainty |
13 | 8.6 Decision threshold and detection limit 8.7 Limits of the confidence interval 9 Test report |
15 | Annex A (normative) Measurement method using a solid-state nuclear track detector (SSNTD) |
21 | Annex B (normative) Measurement method using an electret detector |
29 | Annex C (normative) Measurement method using activated charcoal |
38 | Bibliography |