Standard Test Method for Cloud Point of Nonionic Surfactants

Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

31-08-1965

Publisher

American Society for Testing and Materials

Committee	D 12
DocumentType	Test Method
Pages	2
ProductNote	Reconfirmed 2003
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM D 2024 : 2009
Supersedes	ASTM D 2024 : 1965 : R1997

1.1 This test method covers the determination of the solubility inversion temperature or "cloud point" of nonionic surfactants or detergent systems which are characteristically less soluble in water at higher temperatures than at lower temperatures. It is limited to those surfactants and detergent systems for which the visible solubility change occurs over a range of 1°C or less at concentrations of 0.5 to 1.0 % in water between 30 and 95°C.

1.2 Chemical LimitationsNonionic surfactants that exhibit a characteristic cloud point in general terms consist of a water-in-soluble moiety condensed with 50 to 75 % by weight of ethylene oxide.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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