Water quality. Radon-222 - Test method using gamma-ray spectrometry Ingestion-build-82061 ISO 12999-2 determines uncertainties of

ISO 12999-2 determines uncertainties of sound absorption in building acoustics that is useful for constructing better-insulated buildings and thus

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BS EN 16602-20 is structured such that the necessary level of quality is achieved

These samples may be obtained as such or as eluates from leaching procedures applied to soil or other materials

Water quality. Radon-222 - Test method using gamma-ray spectrometry Ingestion-build-82061 ISO 12999-2 determines uncertainties of1 Scope This part of ISO 13164 specifies a test method for the determination of radon 222 activity concentration in a sample of water following the measurement of its short lived decay products by direct gamma spectrometry of the water sample (see Annex A). The radon 222 activity concentrations, which can be measured by this test method utilizing currently available gamma ray instruments, range from a few becquerels per litre to several hundred