ISO 11665-9:2019

International Standard   Current Edition · Approved on 14 May 2019

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

ISO 11665-9:2019 Files

English 39 Pages
Current Edition
83.65 BHD

ISO 11665-9:2019 Scope

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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