Cover E DIN ISO 11665-4 VDE 0493-1-6654:2020-03
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E DIN ISO 11665-4 VDE 0493-1-6654:2020-03

* German Language Version *

Measurement of radioactivity in the environment – Air: radon-222

Part 4: Integrated measurement method for determining average activity concentration using passive sampling and delayed analysis

(ISO 11665-4:2020)
Class/Status: Draft, valid
Released: 2020-03   Published: 2020-02-28
VDE Art. No.: 1400415
End of objection deadline: 2020-04-28

This International Standard outlines guidance for measuring radon-222 activity concentration and the potential alpha energy concentration of its short-lived decay products in the air. Part 4 of series ISO 11665 gives indications for measuring the average activity concentration of the radon-222 in the air, based on easy-to-use and low-cost passive sampling, and the conditions of use for the measuring devices.