NBN ISO 11665-9:2020
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NBN ISO 11665-9:2020

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

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 (220Rn) does not affect the test result when applying the determination methods described in this document.

Technical characteristics

Publisher Bureau de Normalisation Belge (NBN)
Publication Date 10/22/2020
Page Count 52
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Weight (in grams) ---
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