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ISO 2431:2019

Paints and varnishes — Determination of flow time by use of flow cups
17. 6. 2019.

Опште информације

90.93     3. 1. 2025.

ISO

ISO/TC 35/SC 9

Међународни стандард

87.040  

енглески   француски  

Куповина

Објављен

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Апстракт

This document 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 (see Annex A).
Flow cups with a replaceable jet are not covered by this document 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 document.
NOTE Since the fabrication tolerances for such flow cups are greater than those of the flow cups specified in this document, flow time determinations with dipping flow cups give a precision which is lower than that obtained with the flow cups specified in this document (see Clause 9).
The method described in this document 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.

Животни циклус

ПРЕТХОДНО

ПОВУЧЕН
ISO 2431:2011

ТРЕНУТНО

ОБЈАВЉЕН
ISO 2431:2019
90.93 Одлука о потврђивању стандарда
3. 1. 2025.

Национална преузимања

Боје и лакови – Одређивање времена истицања помоћу посуда за истицање

60.60   Стандард објављен