BS ISO 21910-1:2020
$142.49
Fine bubble technology. Characterization of microbubbles – Off-line evaluation of size index
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 30 |
This document specifies the evaluation method for the size index of microbubbles in microbubble dispersion. It is only applicable to microbubbles with or without shell in water within the range from 1 ?m to 100 ?m. It describes the sampling methods from the point generating or dispersing microbubbles in the retention container to the detecting point of the measuring instruments.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 7 | Foreword |
| 8 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 10 | 4 Requirements 4.1 Requirements on the sample 4.2 Requirements on the sample transfer and measurement system |
| 11 | 5 Measuring instruments 6 Environment 7 Sample transfer and measurement system 7.1 General 7.2 System structure 7.3 Arrangement of components 7.3.1 Position of the inlet tube mouth 7.3.2 Position of the measuring instrument |
| 12 | 7.4 Retention container 7.4.1 General 7.4.2 Configuration requirements for retention container |
| 13 | 7.5 Loading tube 7.5.1 Loading tube inner diameter 7.5.2 Loading tube length 7.5.3 Curvature of the loading tube 7.5.4 Surface roughness 7.5.5 Loading tube materials 7.5.6 Suppression of loading tube sway 7.6 Loading pump 7.6.1 General 7.6.2 Flow rate (Flow velocity) |
| 14 | 7.7 Retention time 7.8 Dispersion before/during sampling for microbubbles with shell |
| 15 | 8 Procedure 9 Data acquisition 9.1 General |
| 16 | 9.2 Measurement time 9.3 Number of measurements 9.4 Size category 9.5 Results 9.6 Calibration and traceability 9.7 Uncertainty evaluation 10 Correction 10.1 General 10.2 Reserved water used for blank preparation |
| 17 | 11 Report |
| 18 | Annex A (informative) Example of microbubbles without shell measurement using dynamic image analysis |
| 21 | Annex B (informative) Effect of setting arrangement |
| 25 | Annex C (informative) Example of corrected data by subtraction of blank water |
| 26 | Annex D (informative) Example of method repeatability |
| 27 | Annex E (informative) Example of comparisons among 3 measurement techniques |
| 28 | Bibliography |
