UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Webinars & White Papers

ISO 13161

Water quality — Polonium 210 — Test method using alpha spectrometry

active, Most Current
Buy Now
Organization: ISO
Publication Date: 1 July 2020
Status: active
Page Count: 26
ICS Code (Examination of physical properties of water): 13.060.60
ICS Code (Radiation measurements): 17.240
scope:

This document specifies a method for the measurement of 210Po in all types of waters by alpha spectrometry.

The method is applicable to test samples of supply/drinking water, rainwater, surface and ground water, marine water, as well as cooling water, industrial water, domestic, and industrial wastewater after proper sampling and handling, and test sample preparation. Filtration of the test sample may be required.

The detection limit depends on the sample volume, the instrument used, the counting time, the background count rate, the detection efficiency and the chemical yield. The method described in this document, using currently available alpha spectrometry apparatus, has a detection limit of approximately 5 mBq l−1, which is lower than the WHO criteria for safe consumption of drinking water (100 mBq l−1). This value can be achieved with a counting time of 24 h for a sample volume of 500 ml.

The method described in this document is also applicable in an emergency situation.

The analysis of 210Po adsorbed to suspended matter in the sample is not covered by this method.

If suspended material has to be removed or analysed, filtration using a 0,45 μm filter is recommended. The analysis of the insoluble fraction requires a mineralization step that is not covered by this document [13]. In this case, the measurement is made on the different phases obtained. The final activity is the sum of all the measured activity concentrations.

It is the user's responsibility to ensure the validity of this test method for the water samples tested.

[13] NF M 60-790-4, Énergie nucléaire - Mesure de la radioactivité dans l'environnement - Sol - Partie 4 : Méthode pour une mise en solution des échantillons de sol[Nuclear energy - Measurement of radioactivity in the environment - Soil - Part 4: Methodology for soil samples dissolution]

Document History

ISO 13161
July 1, 2020
Water quality — Polonium 210 — Test method using alpha spectrometry
This document specifies a method for the measurement of 210Po in all types of waters by alpha spectrometry. The method is applicable to test samples of supply/drinking water, rainwater, surface and...
October 1, 2011
Water quality - Measurement of polonium 210 activity concentration in water by alpha spectrometry
This International Standard specifies the measurement of 210Po activity concentration by alpha spectrometry in all kinds of natural waters. The detection limit of this method depends on the volume...

References

Advertisement