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ISO 11665-9:2019

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

Publication date:   May 14, 2019

General information

90.60 Close of review   Sep 3, 2024

ISO

ISO/TC 85/SC 2 Radiological protection

International Standard

13.040.01   Air quality in general | 17.240   Radiation measurements

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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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 11665-9:2016

NOW

PUBLISHED
ISO 11665-9:2019
90.60 Close of review
Sep 3, 2024