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Normas DIN – AENOR
DIN EN ISO 2431:2018-08

DIN EN ISO 2431:2018-08

Paints and varnishes - Determination of flow time by use of flow cups (ISO/DIS 2431:2018); German and English version prEN ISO 2431:2018 / Note: Date of issue 2018-06-29

Peintures et vernis - Détermination du temps d'écoulement au moyen de coupes d'écoulement (ISO/DIS 2431:2018); Version allemande et anglaise prEN ISO 2431:2018 / Attention: Date de parution 2018-06-29

Beschichtungsstoffe - Bestimmung der Auslaufzeit mit Auslaufbechern (ISO/DIS 2431:2018); Deutsche und Englische Fassung prEN ISO 2431:2018 / Achtung: Erscheinungsdatum 2018-06-29

Fecha Anulación:
2020-02 /Withdrawn
Equivalencias internacionales:

ISO/DIS 2431 (2018-08)

prEN ISO 2431 (2018-08)

Relación con otras normas DIN:

Reemplazada por: DIN EN ISO 2431:2020-02

This Standard specifies a method for determining the flow time of paints, varnishes and related products that can be used to control consistency. Four flow cups of similar dimensions, but having orifice diameters of 3 mm, 4 mm, 5 mm and 6 mm, are specified. Two methods for checking the flow cups for wear and tear are given. Flow cups with a replaceable jet are not covered by this International Standard as the close tolerances on the supply of the material under test to the jet are not met. Commonly used dipping flow cups are also not covered by this International Standard. In general, the fabrication tolerances for such flow cups are greater than those of the flow cups specified in this International Standard. Therefore flow time determinations with dipping flow cups give a precision which is lower than that obtained with the flow cups specified in this International Standard. The method is limited to testing materials for which the breakpoint of the flow from the orifice of the flow cup can be determined with certainty. This point is difficult to determine and reproduce for materials with flow times near the upper limit of the measurement range (100 s) due to slowing-down effects.
Calibration, Coating materials, Coatings, Consistency, Definitions, Design, Designations, Determination, Dimensions, Finishes, Flow cups, Flow measurement, Flow properties, Flow time, Lacquers, Materials testing, Measurement, Measuring techniques, Paints, Sampling methods, Test equipment, Test performance, Test reports, Testing, Time measurement, Varnishes, Viscosity
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