ISO 11665-6:2012 PDF

Scope: This part of ISO 11665 describes radon-222 spot measurement methods. It gives indications for carrying out spot measurements, at the scale of a few minutes at a given place, of the radon activity concentration in open and confined atmospheres. This measurement method is intended for rapid assessment of the radon activity concentration in the air. The result cannot be extrapolated to an annual estimate of the radon activity concentration. This type of measurement is therefore not applicable for assessment of the annual exposure. The measurement method described is applicable to air samples with radon activity concentration greater than 50 Bq/m3. NOTE For example, using an appropriate device, the radon activity concentration can be spot measured in the soil and at the interface of a material with the atmosphere (see also ISO 11665-7).

ISO 11665-6:2012 Referenced Document

IEC 61577-1 Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 1: General principles
ISO 11665-1 Measurement of radioactivity in the environment — Air: radon-222 — Part 1: Origins of radon and its short-lived decay products and associated measurement methods*， 2019-09-18 Update
ISO 11929 Determination of the characteristic limits (decision threshold, detection limit and limits of the confidence interval) for measurements of ionizing radiation - Fundamentals and application
ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories [Standard in French]*， 2017-11-01 Update

2020 ISO 11665-6:2020 Measurement of radioactivity in the environment — Air: radon-222 — Part 6: Spot measurement methods of the activity concentration
2012 ISO 11665-6:2012 Measurement of radioactivity in the environment - Air: radon-222 - Part 6: Spot measurement method of the activity concentration