ISO/DIS 7428-1
ISO/DIS 7428-1



This document specifies the evaluation method for size and concentration indices of fine bubbles generated from showerhead. It is only applicable to fine bubble dispersion in water generated from showerhead using air. It describes the sampling method for fine bubble dispersion from the showerhead into the retention container and measurement procedure of size and concentration indices.

General information 

  •  :  Under development
    You can help develop this draft international standard by contacting your national member
  •  : 1
     : 14
  •  : ISO/TC 281 Fine bubble technology
  •  :
    07.030 Physics. Chemistry

Buy this standard

Format Language
std 1 61 PDF
std 2 61 Paper
  • CHF61

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.