BS EN ISO 11665-3:2015
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Measurement of radioactivity in the environment. Air: radon-222 Spot measurement method of the potential alpha energy concentration of its short-lived decay products
Hardcopy , PDF
12-02-2020
English
31-10-2015
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Principle of the measurement method
5 Equipment
6 Sampling
7 Detection method
8 Measurement
9 Expression of results
10 Test report
Annex A (informative) - Examples of gross alpha
counting protocols
Annex B (informative) - Calculation of the
coefficients k[218Po,j], k[214Pb,j], and k[214Bi,j]
Annex C (informative) - Measurement method using gross alpha
counting according to the Thomas protocol
Bibliography
Specifies spot measurement methods for determining the activity concentration of short-lived radon-222 decay products in the air and for calculating the potential alpha energy concentration.
| Committee |
NCE/2
|
| DevelopmentNote |
Supersedes 10/30186190 DC. Renumbers and supersedes BS ISO 11665-3. 2015 Version incorporates corrigendum to BS ISO 11665-3. (10/2015)
|
| DocumentType |
Standard
|
| Pages |
30
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
This part of ISO 11665 describes spot measurement methods for determining the activity concentration of short-lived radon-222 decay products in the air and for calculating the potential alpha energy concentration.
This part of ISO11665 gives indications for performing a spot measurement of the potential alpha energy concentration, after sampling at a given place for several minutes, and the conditions of use for the measuring devices.
This measurement method is applicable for a rapid assessment of the potential alpha energy concentration. The result obtained cannot be extrapolated to an annual estimate potential alpha energy concentration of short-lived radon-222 decay products. Thus, this type of measurement is not applicable for the assessment of annual exposure.
This measurement method is applicable to air samples with potential alpha energy concentration greater than 5 nJ/m3.
NOTE This part of ISO 11665 does not address the potential contribution of radon-220 decay products.
| Standards | Relationship |
| EN ISO 11665-3:2015 | Identical |
| ISO 11665-3:2012 | Identical |
| ISO/IEC 17025:2005 | General requirements for the competence of testing and calibration laboratories |
| ISO 11665-1:2012 | Measurement of radioactivity in the environment Air: radon-222 Part 1: Origins of radon and its short-lived decay products and associated measurement methods |
| ISO 11665-8:2012 | Measurement of radioactivity in the environment Air: radon-222 Part 8: Methodologies for initial and additional investigations in buildings |
| IEC 61577-1:2006 | Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 1: General principles |
| ISO 11665-2:2012 | Measurement of radioactivity in the environment Air: radon-222 Part 2: Integrated measurement method for determining average potential alpha energy concentration of its short-lived decay products |
| 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 |
| IEC 61577-3:2011 | Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 3: Specific requirements for radon decay product measuring instruments |
| ISO/IEC Guide 98-3:2008 | Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) |
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