EN ISO 13162:2015

Name: EN ISO 13162:2015
Brand: CEN

Superseded

View Superseded by

Water quality - Determination of carbon 14 activity - Liquid scintillation counting method (ISO 13162:2011)

Superseded date

26-06-2021

Published date

05-08-2015

Publisher

Comite Europeen de Normalisation

Foreword
Introduction
1 Scope
2 Normative references
3 Symbols, definitions, units, and abbreviations
4 Principle
5 Reagents and equipment
6 Sampling and samples
7 Procedure
8 Expression of results
9 Test report
Annex A (informative) - Numerical applications
Annex B (informative) - Internal standard method
Annex C (informative) - Extraction of total carbon:
precipitate counting
Annex D (informative) - Extraction of total carbon:
absorption counting
Bibliography

ISO 13162:2011 specifies the conditions for the determination of 14C activity concentration in samples of environmental water or of 14C-containing water using liquid scintillation counting.The method is applicable to the analysis of any organic molecule soluble in water that is well mixed with the scintillation cocktail. It does not apply to micelles or "large" particles (lipids, fulvic acid, humic acid, etc.) that are inadequately mixed with the scintillation cocktail and the water. Some beta energy is lost without any excitation of the scintillation cocktail and the results are underestimated. The method is not applicable to the analysis of organically bound 14C, whose determination requires additional chemical processing (such as chemical oxidation, combustion).It is possible to determine 14C activity concentrations below 106 Bq l-1 without any sample dilution.

Committee	CEN/TC 230
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Superseded
SupersededBy	EN ISO 13162:2021

Standards	Relationship
DIN EN ISO 13162 E : 2015	Identical
NF EN ISO 13162 : 2015	Identical
PN EN ISO 13162 : 2015	Identical
NEN EN ISO 13162 : 2015	Identical
NS EN ISO 13162 : 2015	Identical
I.S. EN ISO 13162:2015	Identical
UNE-EN ISO 13162:2016	Identical
UNI EN ISO 13162 : 2015	Identical
NBN EN ISO 13162 : 2015	Identical
SN EN ISO 13162 : 2015	Identical
DIN EN ISO 13162:2015-11	Identical
ISO 13162:2011	Identical
BS EN ISO 13162:2015	Identical
ONORM EN ISO 13162 : 2015	Identical

ISO/IEC 17025:2005	General requirements for the competence of testing and calibration laboratories
ISO 5667-3:2012	Water quality Sampling Part 3: Preservation and handling of water samples
ISO 5667-1:2006	Water quality Sampling Part 1: Guidance on the design of sampling programmes and sampling techniques
ISO 11929:2010	Determination of the characteristic limits (decision threshold, detection limit and limits of the confidence interval) for measurements of ionizing radiation Fundamentals and application
ISO/IEC Guide 98-3:2008	Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
ISO 80000-10:2009	Quantities and units Part 10: Atomic and nuclear physics