BS EN 61577-2:2017:2018 Edition
$142.49
Radiation protection instrumentation. Radon and radon decay product measuring instruments – Specific requirements for 222Rn and 220Rn measuring instruments
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 30 |
This part of IEC 61577 describes the specific requirements for instruments measuring the activity concentration of airborne 222Rn and 220Rn outdoors, in dwellings, and in workplaces including underground mines. This standard applies practically to all types of electronic measuring instruments that are based on either spot or continuous measurements. The activity concentration can be measured by pumping or by diffusing the air containing 222Rn and/or 220Rn into the sensitive volume of the detection unit or at a particular moment by taking an air sample (grab sampling).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 5 | Table 1 — Reference conditions and standard test conditions (unless otherwise indicated by the manufacturer) |
| 7 | English CONTENTS |
| 9 | FOREWORD |
| 11 | INTRODUCTION |
| 12 | 1 Scope 2 Normative references |
| 13 | 3 Terms and definitions |
| 14 | 4 General design considerations 4.1 Design considerations for the measurements 4.1.1 General |
| 15 | 4.1.2 Effects caused by physical properties of 222Rn and 220Rn 4.2 Design considerations for handling and maintenance 4.2.1 Portability 4.2.2 Application under harsh environmental conditions |
| 16 | 4.2.3 Automatic operation 4.2.4 Reliability 4.2.5 Capability for operational testing 4.2.6 Adjustment and maintenance facilities 4.2.7 Acoustic noise level 4.2.8 Electromagnetic interference |
| 17 | 4.2.9 Storage 5 Technical components 5.1 Sampling assembly 5.2 Radiation detection assembly |
| 18 | 5.3 Data processing and recording 5.4 Measurement display 5.5 Power supply |
| 19 | 6 Test conditions 6.1 General 6.2 Standard test conditions 6.3 Execution of tests 6.4 Reference atmospheres |
| 20 | 7 Requirements and tests concerning radiation detection performance 7.1 Reference response to a test source 7.1.1 Requirements 7.1.2 Test method 7.2 Cross-interference to other radon isotopes 7.2.1 Requirements 7.2.2 Test method 7.3 Linearity of indication 7.3.1 Requirements |
| 21 | 7.3.2 Test method 7.4 Instrument statistical fluctuation 7.4.1 Requirements 7.4.2 Test method |
| 22 | 7.5 Response time 7.5.1 Requirements 7.5.2 Test method 7.6 Signal accumulation 7.6.1 Requirements 7.6.2 Test method 8 Requirements and tests concerning air circuit performance 8.1 General |
| 23 | 8.2 Flow-rate stability 8.2.1 Requirements 8.2.2 Test method 8.3 Accuracy of the air flow-rate measurement 8.3.1 Requirements 8.3.2 Test method 8.4 Effect of filter pressure drop 8.4.1 Requirements 8.4.2 Test method |
| 24 | 8.5 Indication of low sampling flow-rate 8.5.1 Requirements 8.5.2 Test method 9 Requirements and tests concerning environmental performance 9.1 Response to ambient gamma radiation 9.1.1 Requirements 9.1.2 Test method 9.2 Ambient temperature 9.2.1 Requirements 9.2.2 Test method |
| 25 | 9.3 Relative humidity and condensed moisture 9.3.1 Requirements 9.3.2 Test method 9.4 Atmospheric pressure 10 Requirements and tests concerning electrical performance 10.1 Power supply variations 10.1.1 Requirements 10.1.2 Test method |
| 26 | 10.2 Battery test 10.2.1 Requirements 10.2.2 Test method 11 Requirements and tests concerning mechanical performance 11.1 Requirements 11.2 Test method 12 Operation and maintenance manual |
| 27 | 13 Type test report and certificate |
| 28 | Tables Table 1 – Reference conditions and standard test conditions (unless otherwise indicated by the manufacturer) Table 2 – Tests of the radiation detection performance |
| 29 | Table 3 – Tests of the air circuit performance Table 4 – Tests performed with variation of influence quantities |
