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BS ISO 23468:2021 Reactor technology. Power reactor analyses and measurements. Determination of heavy water isotopic purity by Fourier transform infrared spectroscopy >
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BS ISO 23468:2021 Reactor technology. Power reactor analyses and measurements. Determination of heavy water isotopic purity by Fourier transform infrared spectroscopy, 2021
- undefined
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Principle
- 5 Reagents and materials
- 6 Apparatus
- 7 Heavy water reference standard preparation
- 7.1 General requirements
- 7.2 Storage of high isotopic purity heavy water reference standard
- 7.2.1 Ampoule bottle
- 7.2.2 Specially designed stainless steel container
- 7.3 Lower D2O concentration reference standard preparation
- 8 Sampling
- 8.1 General requirements
- 8.2 Sampling with syringes
- 8.3 Sampling with bottles
- 9 Preparation of calibration curves of the method
- 9.1 General
- 9.2 Preparation of the apparatus
- 9.2.1 FTIR spectrometer
- 9.2.2 Infrared liquid cell
- 9.3 Editing of the method
- 9.4 Background spectrum
- 9.5 Heavy water reference standard spectra
- 9.6 Draw the calibration curves for different D2O concentration ranges
- 10 Procedure
- 10.1 Sample preparation
- 10.1.1 Sample temperature adjustment
- 10.1.2 Sample filtration
- 10.1.3 Sample source check
- 10.2 Sample load and scan
- 10.3 After measurement
- 11 Expression of results
- 11.1 Calculation method
- 11.2 Precision
- 11.3 Uncertainty
- 12 Interferences
- 12.1 Contaminated samples
- 12.2 Air bubbles
- 12.3 Foreign materials on the outside of the cell window
- 13 Test report
- Annex A (informative) Specially designed stainless steel container for D2O reference standard
- Annex B (informative) Interested region suggested for typical curves
- Bibliography [Go to Page]