ISO-11665-9 › Measurement of radioactivity in the environment - Air: Radon-222 - Part 9: Test methods for exhalation rate of building materials
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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.
To find similar documents by classification:
13.040.01 (Air quality in general)
17.240 (Radiation measurements Including dosimetry Radiation protection, see 13.280)
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Document Number
ISO 11665-9:2019
Revision Level
2ND EDITION
Status
Current
Publication Date
May 1, 2019
Committee Number
ISO/TC 85/SC 2