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ISO 11665-9:2019 PDF
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Measurement of radioactivity in the environment — Air: Radon-222 — Part 9: Test methods for exhalation rate of building materials
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.
| Edition | 2019 |
|---|---|
| Standard Part No | 9 |
| Published Date | 2019 |
| Published By | International Standardization Organisation |
| Page Count | 39 |
