Performance-Specifications-for-Instrumentation-Systems

MS-PC Performance Specifications for Instrumentation Systems Designed to Measure Radon Gas in Air Introduction ii National Radon Standards committee(s), committee participant(s), or AARST have the right to appeal; (3.1) Appeals shall first be directed to the committee responsible for the action or inaction. Contact information: AARST Consortium on National Radon Standards. Email: standards@aarst.org Website: www.radonstandards.us P.O. Box 2109, Fletcher, North Carolina 28732 Sect. TABLE OF CONTENTS Pg# 1 SCOPE 1 2 PURPOSE 1 3 INTRODUCTION & OVERVIEW 1 4 DEFINITIONS & ABBREVIATIONS 2 5 UNIT ABBREVIATIONS & CONVERSIONS 7 6 CLASSIFICATIONS OF INSTRUMENT SYSTEMS 7 6.1 Continuous Radon Monitors 7 6.1.1 Scintillation Cells 8 6.1.2 Ion Chambers 8 6.1.3 Solid-­‐state Detectors 8 6.2 Integrating Methods 9 6.2.1 Electret Ion Chambers 9 6.2.2 Alpha-­‐track Detectors 9 6.2.3 Electronic Integrating Devices 10 6.3 Equilibrating Methods 10 6.3.1 Gamma-­‐ray Spectroscopy 10 6.3.2 Liquid Scintillation Spectroscopy 11 7 PERFORMANCE & TESTING 11 7.1 Accuracy & Precision (Total Error) 11 7.1.1 Criteria 11 7.1.2 Test 11 7.2 Minimum Detectable Concentration 12 7.2.1 Criteria 12 7.2.2 Test 12 7.3 Proportionality 12 7.3.1 Criteria 12 7.3.2 Test 12 7.4 Temperature 13 7.4.1 Criteria 13 7.4.2 Test 13 7.5 Humidity 13 7.5.1 Criteria 13 7.5.2 Test 13 Disclaimer: The AARST Consortium on National Radon Standards strives to provide accurate, complete and useful information. The AARST Consortium on National Radon Standards will make every effort to correct errors brought to its attention. However, neither the AARST Consortium on National Radon Standards, its sponsoring organization the American Association of Radon Scientists and Technologists nor any person contributing to the preparation of this document makes any warranty, express or implied, with respect to the usefulness or effectiveness of any information, method or process disclosed in this material. Nor does AARST or the AARST Consortium on National Radon Standards assume any liability for the use of, or for damages arising from the use of, any information, method or process disclosed in this document. It is the sole responsibility of radon practitioners using this standard to stay current with changes to the standard and to comply with local and federal codes and laws relating to their practice. 8 DOCUMENTATION 14 Table 8.1 Report Templates STAR Information 15 Device Information 15 Accuracy (Total Error) and Precision 15 Proportionality 16 Low Concentration Exposure 16 High Concentration Exposure 16 High Integrated Concentration Exposure 17 Temperature Group (low) 17 Temperature Group (high) 18 Relative Humidity Group (low) 18 Relative Humidity Group (high 19 Minimum Detectable Concentration 19 9 REFERENCES 20 10 BIBLIOGRAPHY 20 Last Page MS-­‐PC Consensus Body Participants