M00000450
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ISO 13164-3 1st Edition, September 1, 2013 Water quality - Radon-222 - Part 3: Test method using emanometry
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Availability date: 07/13/2021
Description / Abstract:
This part of ISO 13164 specifies a test method for the
determination of radon-222 activity concentration in a sample of
water following its transfer from the aqueous phase to the air
phase by degassing and its detection. It gives recommendations for
rapid measurements performed within less than 1 h.
The radon-222 activity concentrations, which can be measured by
this test method utilizing currently available instruments, range
from 0,1 Bq l−1 to several hundred thousand becquerels
per litre for a 100 ml test sample.
This test method is used successfully with drinking water
samples. The laboratory is responsible for ensuring the validity of
this test method for water samples of untested matrices. This test
method can be applied on field sites or in the laboratory.
Annexes A and B give indications on the necessary counting
conditions to meet the required sensitivity for drinking water
monitoring.