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ISO/TR 20659-1 : 2024

Rheological test methods — Fundamentals and interlaboratory comparisons — Part 1: Determination of the yield point

Standard Details

This document gives information on an interlaboratory comparison for the determination of the yield point, using rheological test methods. The yield point is the shear stress τ below which a material does not flow.

This document provides examples of fields of applications, in which important material properties are characterized with the aid of the yield point. These fields of application include:

    effectiveness of rheological additives;

    shelf life (e.g. with regard to sedimentation, separation and flocculation);

    stability of the structure at rest;

    behaviour when starting to pump;

    use in scraper systems;

    wet-film thickness;

    levelling and sagging behaviour (e.g. without brushmarks or sag formation);

    orientation of effect pigments.

General Information

Status : Published
Standard Type: Main
Document No: ISO/TR 20659-1 : 2024
Document Year: 2024
Pages: 17
Edition: 1
  • Section Volume:
  • ISO/TC 35/SC 9. General test methods for paints and varnishes
  • ICS:
  • 87.040 Paints and varnishes

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ISO/TR 20659-1 : 2024
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