# ISO 13161:2011 — Withdrawn and superseded ISO standards

For ISO 13161:2011, item title is Water quality — Measurement of polonium 210 activity concentration in water by alpha spectrometry; status code is 9599; successor is ISO 13161:2020; withdrawn / published date is 2011-09-30, recorded from its source on 2026-08-05.

- **Identifier:** ISO 13161:2011 _(verified: appears in the quote below)_
- **Item title:** Water quality — Measurement of polonium 210 activity concentration in water by alpha spectrometry _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 13161:2020
- **Withdrawn / published date:** 2011-09-30 _(verified: appears in the quote below)_

## What the source says

> 53402,IS,,ISO 13161:2011,Water quality — Measurement of polonium 210 activity concentration in water by alpha spectrometry,Qualité de l'eau — Mesurage de l'activité du polonium 210 dans l'eau par spectrométrie alpha,2011-09-30,1,"['17.240','13.060.60']",ISO/TC 147/SC 3,9599,,[74776],"['en','fr','ru']",15,"<p>ISO 13161:2011 specifies the measurement of <sup>210</sup>Po activity concentration by alpha spectrometry in all kinds of natural waters.</p><p>The detection limit of this method depends on the volume of the sample, the counting time, the background count rate and the detection efficiency. In the case of drinking water, the analysis is usually carried out on the raw sample, without filt

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).