UNE CEN ISO/TR 20659-1:2024
Rheological test methods - Fundamentals and interlaboratory comparisons - Part 1: Determination of the yield point (ISO/TR 20659-1:2024) (Endorsed by Asociación Española de Normalización in December of 2024.)
Métodos de ensayo reológicos. Principios fundamentales y comparaciones interlaboratorios. Parte 1: Determinación del límite elástico (ISO/TR 20659-1:2024) (Ratificada por la Asociación Española de Normalización en diciembre de 2024.)
| Standard number: | UNE CEN ISO/TR 20659-1:2024 |
| Pages: | 25 |
| Released: | 2024-12-01 |
| Status: | Standard |
UNE CEN ISO/TR 20659-1:2024
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 Ä 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.
