Final Draft
International Standard
ISO/FDIS 25549
Fine bubble technology — Evaluation method for determining the shear viscosity of ultrafine bubble dispersions
Reference number
ISO/FDIS 25549
Edition 1
Projet final Norme internationale
ISO/FDIS 25549
90728
Indisponible en français
Projet au stade approbation.

Résumé

This document specifies a method for evaluating the shear viscosity of fine bubble dispersions. Three measurement methods are adopted, namely parallel-plate rotational shear, cone-plate rotational shear and coaxial-cylinder rotational shear. The average effective shear viscosity of the fine bubble dispersion is calculated from the measured stress (or strain rate) and the strain rate (or stress) applied to the sample. These measurement methods are readily accessible in commercially available instruments.

Informations générales

  •  : Projet
    : Epreuve envoyée au secrétariat ou mise au vote du FDIS: 8 semaines [50.20]
  •  : 1
  • ISO/TC 281
    07.030 
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