ISO/TC 91 Grenzflächenaktive Stoffe,
ISO/TC 91 Surface active agents,
ISO/TC 91 Agents de surface,
ISO Internationale Organisation für Normung,
ISO International Organization for Standardization,
ISO Organisation Internationale de Normalisation
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Media type:
Standard
Title:
ISO 8022
:
Surface active agents; determination of wetting power by immersion
Other titles:
Früher unter dem Titel: ISO 8022 (1984-12)
Tenside; Bestimmung des Tauchnetzvermögens
Agents de surface; détermination du pouvoir mouillant par immersion
Footnote:
Internationale Übereinstimmung mit: DIN EN 1772 (1995-09), MOD*DIN EN 1772 (2000-08), MOD*BS EN 1772 (1995-11-15), IDT*GB/T 11983 (2008), MOD*EN 1772 (1995-08), MOD*EN 1772 (2000-03), MOD*prEN 1772 (1994-12), MOD*prEN 1772 (1999-08), MOD*NF T73-420 (1995-10-01), NEQ*NF T73-420 (2000-06-01), MOD*SN EN 1772 (1995), MOD*SN EN 1772 (2000-05), MOD*OENORM EN 1772 (1995-12-01), MOD*OENORM ISO 8022 (1993-06-01), IDT*PN-EN 1772 (2001-12-27), MOD*SS-EN 1772 (2000-08-18), MOD*UNE 55831 (1992-05-13), IDT*UNE-EN 1772 (1996-04-29), IDT*UNE-EN 1772 (2001-05-16), IDT*UNE-EN 1772 (2001-05-16), MOD*KS M ISO 8022 (2003-11-14), IDT*TS EN 1772 (1998-04-01), NEQ*STN EN 1772 (2001-02-01), MOD*NEN-EN 1772:1995 en (1995-09-01), MOD*NEN-EN 1772:2000 en (2000-04-01), MOD*NEN-ISO 8022:1990 en (1990-09-01), IDT
Description:
A cotton disc of known nature and characteristics, held in a grip, is immersed in a solution of surface active agent of known concentration. After displacement of air an penetration of the solution into the cloth, the cotton disc starts to sink. The wetting time is determined by measurement the interval between the moment of immersion of the cotton disc and the moment when it begins to sink. The wetting time is determined of two standard solutions and for each of five different concentrations and then of the surface active agent solution under test for five different concentrations. The three curves "wetting time / concentration" are plotted and compared.