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BSI 23/30457111 DC:2023 Edition

BSI 23/30457111 DC:2023 Edition

$13.70

BS ISO 7392. Fine bubble technology. Evaluation method for determining surface tension of ultrafine bubble dispersions

Published By Publication Date Number of Pages
BSI 2023 28
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PDF Catalog

PDF Pages PDF Title
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 sample
5.4 Cleaning of measuring unit
5.4.1 Cleaning of plate and ring
5.4.2 Cleaning of 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 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

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BSI 23/30457111 DC
$13.70