BS ISO 21238:2007 - Nuclear energy. Nuclear fuel technology. Scaling factor method to determine the radioactivity of low and intermediate-level radioactive waste packages generated at nuclear power plants – BSI British Standards

BS ISO 21238:2007

Nuclear energy. Nuclear fuel technology. Scaling factor method to determine the radioactivity of low and intermediate-level radioactive waste packages generated at nuclear power plants

Status : Confirmed, Current   Published : May 2007

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Burial disposal of low- and intermediate-level radioactive waste has been practiced in several countries. Before disposal, the radioactivity of specific nuclides in waste packages have to be declared in accordance with limits and criteria derived from safety assessment of the disposal facility. Some of these nuclides are difficult to measure from the outside of the waste packages, because they are beta or alpha emitting nuclides.

There are a number of activity determination methods. The scaling-factor method is widely applied in order to evaluate these difficult-to-measure nuclides. The scaling-factor method is based on a correlation between easily measurable gamma emitting nuclides and difficult-to-measure nuclides.

BS ISO 21238 is the international standard that gives guidelines for the common basic methodology of empirically determining scaling factors to evaluate the radioactivity of a nuclear power plant’s low and intermediate level waste. It covers, specifically, the difficult-to-measure nuclides in low- and intermediate-level radioactive waste packages.

This standard gives common guidelines for the scaling factors used in the characterization of contaminated wastes produced in nuclear power plants with water-cooled reactor. It is also relevant to other reactor types, such as gas-cooled reactors. Methodologies for determining scaling factors based on theoretical considerations (i.e. not based on experimental measurement) are not covered by BS ISO 21238.




Standard NumberBS ISO 21238:2007
TitleNuclear energy. Nuclear fuel technology. Scaling factor method to determine the radioactivity of low and intermediate-level radioactive waste packages generated at nuclear power plants
StatusConfirmed, Current
Publication Date31 May 2007
Confirm Date09 November 2017
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)ISO 921:1997, EPRI NP-5077:1987, EPRI NP-4037:1985
International RelationshipsISO 21238:2007
Draft Superseded By05/30118988 DC
DescriptorsContamination, Radiation measurement, Radioactive wastes, Nuclear fuel processing, Waste handling, Nuclear power, Water-cooled systems, Nuclides, Nuclear technology, Nuclear fuels, Radionuclides, Nuclear-electric power stations, Radioactivity, Nuclear radiation
ICS27.120.30
Title in FrenchÉnergie nucléaire. Technologie du combustible nucléaire. Méthode des ratios pour déterminer la radioactivité des colis de déchets de faible et moyenne activité produits par les centrales nucléaires
CommitteeNCE/9
ISBN978 0 580 50829 5
PublisherBSI
FormatA4
DeliveryYes
Pages32
File Size1.923 MB
Price£182.00


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