BSI PD ISO/TR 18231:2016
$167.15
Iron ores. Wavelength dispersive X-ray fluorescence spectrometers. Determination of precision
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 36 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | Introduction |
| 8 | 1 Scope 2 Frequency of testing |
| 9 | 3 Counter tests 3.1 Counter resolution 3.1.1 General |
| 11 | 3.1.2 Procedure |
| 13 | 3.1.3 Assessment of results 3.2 Conductivity of the gas flow proportional counter window 3.2.1 General |
| 14 | 3.2.2 Procedure 3.2.3 Assessment of results 3.3 Pulse shift corrector 3.3.1 General |
| 15 | 3.3.2 Procedure 4 Spectrometer tests 4.1 General |
| 16 | 4.2 Precision 4.2.1 General |
| 17 | 4.2.2 Calculation of counting statistical error |
| 18 | 4.3 Test specimen 4.3.1 General 4.3.2 Sequential spectrometers 4.3.3 Simultaneous spectrometers 4.4 Instrumental conditions 4.4.1 General |
| 19 | 4.4.2 Sequential spectrometers 4.4.3 Simultaneous spectrometers 4.5 Stability test |
| 20 | 4.6 Specimen rotation test 4.7 Carousel reproducibility test 4.8 Mounting and loading reproducibility test 4.9 Comparison of sample holders |
| 21 | 4.10 Comparison of carousel positions 4.11 Angular reproducibility 4.12 Collimator reproducibility (for sequential spectrometers fitted with an interchangeable collimator) 4.13 Detector changing reproducibility (for sequential spectrometers fitted with more than one detector) 4.14 Crystal changing reproducibility |
| 22 | 4.15 Other tests 4.16 Note on glass bead curvature 5 Determination of the dead time and the maximum usable count rate of the equipment 5.1 General |
| 23 | 5.2 Methods of determination of dead time 5.2.1 General |
| 24 | 5.2.2 Recommended method for determining dead time |
| 31 | Annex A (informative) Calculation of the coefficient of variation of duplicates |
| 33 | Bibliography |
