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ÖNORM EN 12458:1999-05

Действует
Surface active agents - Determination of stability in hard water
This European Standard specifies a rnethod of assessing the stability in hard water of surface active agents which
are readily soluble at ambient temperature or slightly higher ternperatures.
This method is applicable to surface active agents soluble in water at 20 "C. It can be extended to those which are
soluble at approximately 50 "C.
Diese ÖNORM beschreibt ein Verfahren zur Bestimmung der Beständigkeit von Tensiden, die bei Raumtemperatur (20 °C) oder mäßiger Wärme (50 °C) leicht löslich sind, in hartem Wasser.
ICS
71.100.40 Surface active agents / Поверхностно-активные вещества