BS EN ISO 13161:2020 - Water quality. Polonium 210. Test method using alpha spectrometry
Maintenance will be taking place for Shop on Wednesday 28th October 2020 between 07:00 AM and 08:30 AM UK time. You will not be able to place any orders while this work is being carried out. Please accept our apologies for any inconvenience caused during this essential maintenance work.

BS EN ISO 13161:2020

Water quality. Polonium 210. Test method using alpha spectrometry

Status : Current   Published : September 2020



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 ?m 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.

Standard NumberBS EN ISO 13161:2020
TitleWater quality. Polonium 210. Test method using alpha spectrometry
Publication Date11 September 2020
Normative References(Required to achieve compliance to this standard)ISO/IEC 17025, ISO 5667-10, ISO 11929-3, GUM:1995, ISO 3696, ISO/IEC Guide 98-3, ISO 5667-3, ISO 5667-1, ISO 80000-10, ISO 11929-1
Informative References(Provided for Information)ISO 5667-11, ISO 5667-7, IAEA GSG-2, ISO 5667-5, ISO 5667-14, NF M 60-790-4, ISO 5667-6, ISO 5667-9, ISO 5667-4, ISO 5667-20, ISO 5667-8, ISO 7870-2:2013, ISO 7870-4:2011, ISO 7870-1:2019
ReplacesBS EN ISO 13161:2015
International RelationshipsEN ISO 13161:2020,ISO 13161:2020
Draft Superseded By19/30377336 DC
DescriptorsPolonium, Concentration (chemical), Physical property measurement, Spectrochemical analysis, Water, Water testing, Quality
Title in FrenchQualité de l'eau. Polonium 210. Méthode d'essai par spectrométrie alpha
Title in GermanWasserbeschaffenheit. Polonium-210. Verfahren mittels Alphaspektrometrie
ISBN978 0 539 00927 9
File Size1.068 MB

 Your basket
Your basket is empty

Multi-user access to over 3,500 medical device standards, regulations, expert commentaries and other documents

Tracked Changes

Understand the changes made to a standard with our new Tracked Changes version

Develop a PAS

Develop a fast-track standardization document in 9-12 months

Worldwide Standards
We can source any standard from anywhere in the world