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Homepage>ISO Standards>ISO 11665-9:2019-Measurement of radioactivity in the environment — Air: Radon-222-Part 9: Test methods for exhalation rate of building materials
download between 0-24 hoursReleased: 2019
ISO 11665-9:2019-Measurement of radioactivity in the environment — Air: Radon-222-Part 9: Test methods for exhalation rate of building materials

ISO 11665-9:2019

ISO 11665-9:2019-Measurement of radioactivity in the environment — Air: Radon-222-Part 9: Test methods for exhalation rate of building materials

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Standard´s number:ISO 11665-9:2019
Pages:39
Edition:2
Released:2019
DESCRIPTION

ISO 11665-9:2019


This document specifies a method for the determination of the free radon exhalation rate of a batch of mineral based building materials. This document only refers to 222Rn exhalation determination using two test methods: liquid Scintillation Counting (LSC) and gamma ray spectrometry (see Annex A and Annex B). The exhalation of thoron (220Rn) does not affect the test result when applying the determination methods described in this document.
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