Standard Svensk standard · SS-ISO 20045:2023

Mätning av radioaktivitet i omgivningen - Luft: Tritium - Provningsmetod med provuppsamling i bubbelkammare (ISO 20045:2023, IDT) (Rättad version 2023-09)

Status: Upphävd

· Ersätts av: SS-EN ISO 20045:2024
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Standard Svensk standard · SS-ISO 20045:2023

Mätning av radioaktivitet i omgivningen - Luft: Tritium - Provningsmetod med provuppsamling i bubbelkammare (ISO 20045:2023, IDT) (Rättad version 2023-09)
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This corrected version of ISO 20045:2023 incorporates the following corrections:

— editorial corrections have been made in Clause 1, 3.2, Table 2, 8.3.1.1, 8.3.2.1, 8.3.3.2 and Clause 9;

— Formula (17) and Formula (B.10) have been corrected.

Omfattning
This document describes a test method to determine the activity concentration of atmospheric tritium by trapping tritium in air by bubbling through a water solution. Atmospheric tritium activity concentration levels are expressed in becquerel per cubic metre (Bq·m-3).


The formulae are given for a sampling system with four bubblers. They can also be applied to trapping systems with only one trapping module consisting of two bubblers if only HTO is in the atmosphere to be sampled.


This document does not cover laboratory test sample results, in becquerel per litre of trapping solution, according to ISO 9698 or ISO 13168.


The test method detection limit result is between 0,2 Bq·m-3 and 0,5 Bq·m-3 when the sampling duration is about one week.

Ämnesområden

Allmänt (13.040.01) Strålningsmätning (17.240)


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Standard Svensk standard · SS-ISO 20045:2023

Mätning av radioaktivitet i omgivningen - Luft: Tritium - Provningsmetod med provuppsamling i bubbelkammare (ISO 20045:2023, IDT) (Rättad version 2023-09)
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Produktinformation

Språk: Engelska

Framtagen av: Kärnenergi, SIS/TK 405

Internationell titel: Measurement of radioactivity in the environment - Air: tritium - Test method using sampling by bubbler (ISO 20045:2023, IDT) (Corrected version 2023-09)

Artikelnummer: STD-80043352

Utgåva: 1

Fastställd: 2023-06-07

Antal sidor: 44

Ersätts av: SS-EN ISO 20045:2024