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Homepage>ISO Standards>ISO 1063:1974-Surface active agents — Determination of stability in hard water
download between 0-24 hoursReleased: 1974
ISO 1063:1974-Surface active agents — Determination of stability in hard water

ISO 1063:1974

ISO 1063:1974-Surface active agents — Determination of stability in hard water

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Standard´s number:ISO 1063:1974
Pages:3
Edition:1
Released:1974
DESCRIPTION

ISO 1063:1974


Solutions of the substance to be tested in differing concentrations are mixed with hard water solutions of differing known calcium hardness. After leaving the solutions to stand in specified conditions their appearance, i.e. clearness, opalescence, cloudiness or precipitation is observed. The 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.
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