ISO 7392:2024
International Standard
Current Edition
·
Approved on
09 April 2024
Fine bubble technology — Evaluation method for determining surface tension of ultrafine bubble dispersions
ISO 7392:2024 Files
English
20 Pages
Current Edition
60.4 BHD
ISO 7392:2024 Scope
This document specifies evaluation methods for surface tension of ultrafine bubble (UFB) dispersion in water.
Three test methods, Wilhelmy, du Noüy and the pendant drop method, are adopted because of their advantages to detect small change in surface tension by UFB dispersion in water and the high accessibility to commercially available instruments.
This document can be used to measure the surface tension of liquid containing UFB dispersion in dilute surfactant water solution such as detergent or machining coolant as well as UFB dispersion in water.
NOTE Measurement data of liquid containing UFB dispersion in dilute surfactant water solution are summarized in Annex D.
Best Sellers
GSO 150-2:2013
Gulf Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
BH GSO 150-2:2015
GSO 150-2:2013
Bahraini Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
BH GSO 2055-1:2016
GSO 2055-1:2015
Bahraini Technical Regulation
HALAL FOOD - Part 1 : General Requirements
GSO 2055-1:2015
Gulf Technical Regulation
HALAL FOOD - Part 1 : General Requirements
Recently Published
ISO/TR 4752:2025
International Standard
Biotechnology — Inventory of methods for detection of microbiological contamination in mammalian cell culture
ISO 21043-3:2025
International Standard
Forensic sciences — Part 3: Analysis
ISO 19984-2:2025
International Standard
Rubber and rubber products — Determination of biobased content — Part 2: Biobased carbon content
ISO/TS 6417:2025
International Standard
Microfluidic pumps — Symbols and performance communication