DIN EN ISO 13162:2022-03
Water quality - Carbon 14 - Test method using liquid scintillation counting (ISO 13162:2021); German version EN ISO 13162:2021
| Fecha edición: |
2022-03-01
En Vigor
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| Idiomas disponibles: | Inglés, Alemán |
| Resumen: | This document specifies a method for the measurement of 14C activity concentration in all types of water samples by liquid scintillation counting either directly on the test sample or following a chemical separation. 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. The detection limit depends on the sample volume, the instrument used, the sample counting time, the background count rate, the detection efficiency and the chemical recovery. The method described in this document, using currently available liquid scintillation counters and suitable technical conditions has a detection limit as low as 1 Bq l-1, which is lower than the WHO criteria for safe consumption of drinking water (100 Bq·l-1). 14C activity concentrations can be measured up to 10 high 6 Bq l-1 without any sample dilution. It is the user's responsibility to ensure the validity of this test method for the water samples tested. |
| Keywords: | Activity|Carbon|Carbon content|Chemical analysis and testing|Chemical elements|Cooling water|Determination of content|Drinking water|Environmental condition|Liquid scintillation counting|Measurement|Methods of analysis|Radiation|Rainwater|Sample preparation|Sampling methods|Scintillation counters|Seawater|Specimen preparation|Surface water|Testing|Water|Water quality|Water testing |
| ICS: | 17.240 - Medición de radiaciones, 13.060.60 - Determinación de las propiedades físicas del agua |
| CTN: | |
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Equivalencia Internacional |
Idéntica EN ISO 13162:2021 Idéntica ISO 13162:2021 |
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Reemplazo Normas |
Reemplaza a DIN EN ISO 13162:2015-11 Reemplaza a DIN EN ISO 13162:2020-03 |
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