BSI PD CEN/TS 17216:2018
$167.15
Construction products. Assessment of release of dangerous substances. Determination of activity concentrations of radium-226, thorium-232 and potassium-40 in construction products using semiconductor gamma-ray spectrometry
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 40 |
This document describes a test method for the determination of the activity concentrations of the radionuclides radium-226, thorium-232 and potassium-40 in construction products using semiconductor gamma-ray spectrometry. This document describes sampling from a laboratory sample, sample preparation, and the sample measurement by semiconductor gamma-ray spectrometry. It includes background subtraction, energy and efficiency calibration, analysis of the spectrum, calculation of the activity concentrations with the associated uncertainties, the decision threshold and detection limit, and reporting of the results. The preparation of the laboratory sample from the initial product sample lies outside its scope and is described in product standards. This document is intended to be non product-specific in scope, however, there are a limited number of product-specific elements such as the preparation of the laboratory sample and drying of the test portion. The method is applicable to samples from products consisting of single or multiple material components.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 5 | European foreword |
| 6 | Introduction |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 9 | 4 Symbols and abbreviations |
| 11 | 5 Principles of the test method |
| 12 | 6 Sampling and sample preparation 6.1 Sampling hierarchy |
| 13 | 6.2 Sampling and sub-sampling 6.2.1 General |
| 14 | 6.2.2 Sub-sampling from the laboratory sample 6.3 Test specimen/test portion preparation 6.3.1 Apparatus and ancillary materials |
| 15 | 6.3.2 Preparation of test portion and test specimen |
| 17 | 7 Test procedure 7.1 General 7.2 Measurement 7.2.1 Apparatus, software and calibration standards |
| 19 | 7.2.2 Initial calibrations |
| 20 | 7.2.3 Measurements |
| 21 | 8 Processing the test data 8.1 General 8.2 Analysis of counting spectrum 8.2.1 Identification of photopeaks 8.2.2 Corrected counting rate |
| 22 | 8.3 Calculating activity concentration 8.3.1 Activity in the test specimen 8.3.2 Average activity per radionuclide |
| 23 | 8.4 Standard uncertainty 8.4.1 Internal uncertainty |
| 24 | 8.4.2 External uncertainty 8.4.3 Relative uncertainty 8.4.4 Total uncertainty per radionuclide |
| 25 | 8.5 Decision threshold |
| 26 | 8.6 Detection limit |
| 27 | 9 Test report |
| 29 | Annex A (normative) Method for the determination of the radon-tightness of a test specimen container |
| 33 | Annex B (normative) Preparation of standardized calibration sources |
| 36 | Annex C (normative) Method for the determination of the activity concentration in a composite product |
| 37 | Annex D (informative) Complementary photopeaks to verify the activity concentration in the test specimen |
| 38 | Annex E (informative) Method for the determination of the corrected number of pulses in a photopeak (only to be used for completely stand-alone single peaks) |
| 39 | Bibliography |
