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BSI 23/30457114 DC:2023 Edition

BSI 23/30457114 DC:2023 Edition

$13.70

BS ISO 7428-1. Fine bubble technology. Domestic applications – Part 1. Assessment of showerhead devices by evaluating size and concentration indices of generated fine bubbles

Published By Publication Date Number of Pages
BSI 2023 22
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PDF Catalog

PDF Pages PDF Title
1 30457114-NC.pdf
3 ISO_DIS 7428-1 ed.1 – id.82782 Enquiry PDF (en).pdf
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 Sample
10 4.2 Measuring instruments
5 Environment
6 Evaluation
6.1 General
6.2 Setting of fine bubble showerhead device to retention container
12 6.3 One-way flow
6.3.1 General
6.3.2 System configuration
13 6.3.3 Evaluation procedure for the one-way flow
14 6.4 Circulation flow
6.4.1 General
6.4.2 System configuration
15 6.4.3 Evaluation procedure for the circulation flow
16 7 Test report
17 Annex€A (informative) Example of results for microbubble using the one-way flow
18 Annex€B (informative) Example of results for ultrafine bubble using the circulation flow
19 Annex€C (informative) Water service standards of some countries about water pressure
20 Annex€D (informative) Example of test systems to evaluate the shower head device
22 Bibliography

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BSI 23/30457114 DC
$13.70