Standard NBN ISO 11665-9:2020
Measurement of radioactivity in the environment — Air: Radon-222 — Part 9: Test methods for exhalation rate of building materials (ISO 11665-9:2019)
Status
:
Active
Publication date
:
10/2020
Languages
:
EN/FR
ICS
:
17.240 Radiation measurements
Summary :
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 (220R
n) does not affect the test result when applying the determination methods described in this document.
n) does not affect the test result when applying the determination methods described in this document.
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