ISO 11665-9:2019
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ISO 11665-9:2019

Measurement of radioactivity in the environment
Air: Radon-222

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.

Notes

90.20 : Norme internationale en cours d'examen systématique

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 05/14/2019
Edition 2
Page Count 39
EAN ---
ISBN ---
Weight (in grams) ---
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