DIN Standards Committee Coatings and Coating Materials
Rheological test methods - Fundamentals and interlaboratory comparisons - Part 1: Determination of the yield point
Abstract
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.
Begin
2024-05-28
WI
00139823
Planned document number
DIN EN ISO 20659-1
Project number
00201228
Responsible national committee
Responsible european committee
CEN/TC 139 - Paints and varnishes
Responsible international committee
ISO/TC 35/SC 9/WG 30 - Properties prior to and during application and drying
