RADIATION PROTECTION INSTRUMENTATION - RADON AND RADON DECAY PRODUCT MEASURING INSTRUMENTS - PART 4: EQUIPMENT FOR THE PRODUCTION OF REFERENCE ATMOSPHERES CONTAINING RADON ISOTOPES AND THEIR DECAY PRODUCTS (STAR)
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Terms, definitions and units
3.1 General terms and definitions
3.2 Specific terms and definitions
3.3 Units and conversion factors
4 General description of a System for Test
Atmospheres with Radon (STAR)
4.1 General
4.2 Mode of operation of a STAR
4.2.1 Static mode of operation
4.2.2 Dynamic mode of operation
5 Characteristics of a STAR
5.1 General
5.2 STAR for radon
5.2.1 General
5.2.2 Technical characteristics of STAR containers
5.2.3 Radon sources
5.2.4 [222]Rn and [220]Rn analysis and control
5.2.5 Analysis and control of climatic parameters
5.3 STAR for radon and RnDP
5.3.1 General
5.3.2 Technical characteristics of STAR containers
5.3.3 RnDP sources
5.3.4 RnDP analysis and control
5.3.5 Sampling flow rate of equipment under test
5.3.6 Analysis and control of climatic parameters
6 Requirements for the reference atmosphere provided by
STAR
6.1 General
6.2 Reference conditions
6.3 Influence quantities
6.3.1 General
6.3.2 Temperature
6.3.3 Relative humidity
6.3.4 Atmospheric pressure
6.3.5 Ambient gamma field
6.3.6 Working range for exposure to RnDP
6.3.7 Working range for aerosols
6.3.8 Exposure time for the instrument under test
7 Calibration and traceability of measurement methods
and instruments used in a STAR
7.1 Traceability chains
7.2 Quality assurance
Annex A (informative) Characteristics of atmospheres that
can be simulated in a STAR
Bibliography
Describes the general features concerning test and calibration of radon and radon decay products measuring instruments.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 45 |
