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BS ISO 7392:2024

$142.49

Fine bubble technology. Evaluation method for determining surface tension of ultrafine bubble dispersions

Published By Publication Date Number of Pages
BSI 2024 30
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Apparatus
4.1 General
4.2 Wilhelmy method
4.3 du Noüy method
4.4 Pendant drop method
5 Procedure
5.1 Testing environment
5.2 Temperature measurement
11 5.3 Handling of the sample
5.4 Cleaning of the measuring unit
5.4.1 Cleaning of the plate and ring
5.4.2 Cleaning of the measuring cup and syringe
5.5 Determination
5.6 Measurement of blank water
6 Calculation and expression of results
12 7 Test report
13 Annex A (informative) Specifications for commercially available measurement instruments
14 Annex B (informative) Feature of the measurement methods
20 Annex C (informative) Measurement results under various measuring conditions
24 Annex D (informative) Variation in surface tension of surfactant solution diluted with UFBD
28 Bibliography
BS ISO 7392:2024
$142.49