FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Terms, definitions and units
3.1 General definitions
3.2 Specific definitions
3.3 Units and conversion factors
4 Instruments used for measuring radon and radon decay
product
4.1 General
4.2 Criteria for the classification of radon and RnDP
measuring instruments
4.3 Methods of measuring radon in an atmosphere
4.4 Methods of measuring radon decay product in an
atmosphere
4.5 Influence quantities
4.6 Range of test parameters
5 Need for a reference atmosphere
5.1 Usual test methods limitations
5.2 Mixtures of radon isotopes
6 The concept of STAR
7 Protocols for testing radon and RnDP measuring instruments
7.1 Specific requirements for testing [222]Rn measuring
instruments
7.2 Specific requirements for testing [220]Rn measuring
instruments
7.3 Specific requirements for testing RnDP[222] measuring
instruments
7.4 Specific requirements for testing RnDP[220] measuring
instruments
Annex A (informative) Structure of the IEC 61577 series
Bibliography