Standard Svensk standard · SS-EN ISO 19581:2020

Mätning av radioaktivitet - Gammautsändande radionuklider - Snabb screeningsmetod med scintillationsdetektor-gammastrålningsspektrometri (ISO 19581:2017)

Status: Gällande

Köp denna standard

Standard Svensk standard · SS-EN ISO 19581:2020

Mätning av radioaktivitet - Gammautsändande radionuklider - Snabb screeningsmetod med scintillationsdetektor-gammastrålningsspektrometri (ISO 19581:2017)
Prenumerera på standarden - Läs mer Dölj
Pris: 875 SEK
standard ikon pdf

PDF

Pris: 875 SEK
standard ikon

Papper

Pris: 1 400 SEK
standard ikon pdf + standard ikon

PDF + papper

Fler alternativ Färre alternativ
Omfattning
ISO 19581 specifies a screening test method to quantify rapidly the activity concentration of gamma-emitting radionuclides, such as 131I, 132Te, 134Cs and 137Cs, in solid or liquid test samples using gamma-ray spectrometry with lower resolution scintillation detectors as compared with the HPGe detectors (see IEC 61563).
This test method can be used for the measurement of any potentially contaminated environmental matrices (including soil), food and feed samples as well as industrial materials or products that have been properly conditioned. Sample preparation techniques used in the screening method are not specified in ISO 19581, since special sample preparation techniques other than simple machining (cutting, grinding, etc.) should not be required. Although the sampling procedure is of utmost importance in the case of the measurement of radioactivity in samples, it is out of scope of ISO 19581; other international standards for sampling procedures that can be used in combination with ISO 19581 are available (see References [1],[2],[3],[4],[5],[6]).
The test method applies to the measurement of gamma-emitting radionuclides such as 131I, 134Cs and 137Cs. Using sample sizes of 0,5 l to 1,0 l in a Marinelli beaker and a counting time of 5 min to 20 min, decision threshold of 10 Bq·kg-1 can be achievable using a commercially available scintillation spectrometer [e.g. thallium activated sodium iodine (NaI(Tl)) spectrometer 2" ? × 2" detector size, 7 % resolution (FWHM) at 662 keV, 30 mm lead shield thickness].
This test method also can be performed in a "makeshift" laboratory or even outside a testing laboratory on samples directly measured in the field where they were collected.
During a nuclear or radiological emergency, this test method enables a rapid measurement of the sample activity concentration of potentially contaminated samples to check against operational intervention levels (OILs) set up by decision makers that would trigger a predetermined emergen ...

Ämnesområden

Strålningsmätning (17.240)


Köp denna standard

Standard Svensk standard · SS-EN ISO 19581:2020

Mätning av radioaktivitet - Gammautsändande radionuklider - Snabb screeningsmetod med scintillationsdetektor-gammastrålningsspektrometri (ISO 19581:2017)
Prenumerera på standarden - Läs mer Dölj
Pris: 875 SEK
standard ikon pdf

PDF

Pris: 875 SEK
standard ikon

Papper

Pris: 1 400 SEK
standard ikon pdf + standard ikon

PDF + papper

Fler alternativ Färre alternativ

Produktinformation

Språk: Engelska

Framtagen av: Kärnenergi, SIS/TK 405

Internationell titel: Measurement of radioactivity - Gamma emitting radionuclides - Rapid screening method using scintillation detector gamma-ray spectrometry (ISO 19581:2017)

Artikelnummer: STD-80020532

Utgåva: 1

Fastställd: 2020-03-04

Antal sidor: 28

Ersätter: SS-ISO 19581:2018