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CEN ISO/TR 20659-1:2024:en

Rheological test methods. Fundamentals and interlaboratory comparisons. Part 1: Determination of the yield point (ISO/TR 20659-1:2024)

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Scope
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 t 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.

The standards writing body responsible for this document in Finland is Kemesta.
Product group(s)
87.040 Paints and varnishes »
Relationships
Normative references
ISO 3219-1:2021 Rheology — Part 1: Vocabulary and symbols for rotational and oscillatory rheometry
Technical committee
CEN/TC 139 Paints and varnishes »
Date of implementation
18.10.2024
Published
22.10.2024
Edition
1
Pages
22
Language(s)
English

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