BS EN ISO 13162:2015
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Water quality. Determination of carbon 14 activity. Liquid scintillation counting method
Hardcopy , PDF
30-06-2021
English
31-08-2015
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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
Defines the conditions for the determination of [14]C activity concentration in samples of environmental water or of [14]C-containing water using liquid scintillation counting.
| Committee |
EH/3
|
| DocumentType |
Standard
|
| Pages |
32
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
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.
| Standards | Relationship |
| ISO 13162:2011 | Identical |
| 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 |
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