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The third edition corrected errors in figures 2 and 4 and the formulae for those figures. Iso 2431: paints and varnishes — determination of flow time by use of flow cups this document specifies a method for determining the flow time of paints, varnishes and related products that can be used to control consistency. The second edition specified three flow cups with an orifice diameter of 3 mm, 4 mm and 6 mm. Iso shall not be held responsible for identifying any or all such patent rights. This fifth edition cancels and replaces the fourth edition ( iso 2431: 1993), which has been technically revised. Pdf or print version 11 laboratories participated in the test. Iso 2431: ( e) introduction the first edition of this document, iso 2431, published in 1972, specified only one flow cup with an orifice diameter of 4 mm. En iso 2431: & lc: is the adopted irish version of the european document en iso 2431:, paints and varnishes - determination of flow time by use of flow cups ( iso 2431:, corrected versionthis document does not purport to include all the necessary provisions of a contract.
Iso 2431 was prepared by technical committee iso/ tc 35, paints and varnishes, subcommittee sc 9, general test methods for paints and varnishes. Liquids were tested using 4 mm and 6 mm flow. International organization for standards. Iso where iso 2431 is the number of this document; is the designation number of the flow cup used; is the flow time, in seconds. Four flow cups of similar dimensions, but having orifice diameters of 3 mm, 4 mm, 5 mm and 6 mm, are specified. Last active version. 1 general an interlaboratory test was planned and executed, and the results evaluated, in accordance with iso 5725- 2. Pdf or print version. The first edition of this document, iso 2431, published in 1972, specified only one flow cup with an orifice diameter of 4 mm.
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