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Sets out three methods for the determination of the radon content in indoor air. Method A applies to grab samples and requires the collection of a grab sample in a scintillation cell followed by the measurement of its alpha activity. Method B is applicable for short-term sampling periods. The principle consists of adsorption of the radon onto activated charcoal followed by the measurement of the gamma radiation that is emitted. Method C applies to sampling periods of up to a year and employs solid state nuclear track monitoring.RECONFIRMATION NOTICETechnical Committee EV-007 has reviewed the content of this publication and inaccordance with Standards Australia procedures for reconfirmation, it has been determinedthat the publication is still valid and does not require change.Certain documents referenced in the publication may have been amended since the originaldate of publication. Users are advised to ensure that they are using the latest versions ofsuch documents as appropriate, unless advised otherwise in this Reconfirmation Notice.Approved for reconfirmation in accordance with Standards Australia procedures forreconfirmation on 9 September 2014.The following are represented on Technical Committee EV-007:Australian Aluminium CouncilAustralian Bureau of MeteorologyAustralian Chamber of Commerce and IndustryAustralian Industry GroupClean Air Society of Australia and New ZealandCSIRO Marine and Atmospheric ResearchDepartment of Environment and Conservation, WADepartment of Science, Information Technology, Innovation and the Arts, QldEnvironment Protection Authority, Vic.National Association of Testing Authorities AustraliaOffice of Environment and Heritage, NSW

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