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ASTM D 2024 : 2009

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Cloud Point of Nonionic Surfactants
Available format(s)

Hardcopy , PDF

Superseded date

08-08-2023

Language(s)

English

Published date

10-01-2009

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 15.04, 2017 Defines a procedure to determine the 'cloud point' of nonionic surfactants or detergent systems.

1.1 This test method covers a procedure to determine the “cloud point” of nonionic surfactants or detergent systems. Cloud Point is the temperature at which dissolved components (solids or liquids) are no longer completely soluble, precipating as a second phase giving the fluid a cloudy appearance. 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 DI water between 30 and 95°C.

1.2 Chemical Limitations—Nonionic 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. If the level of ethoxylation is too low the surfactant may not be water soluble at temperatures less than 30°C, and if it is too high no cloud point may exist.

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.

Committee
D 12
DocumentType
Test Method
Pages
2
ProductNote
Reconfirmed 2009
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 4252 : 1989 : R2017 Standard Test Methods for Chemical Analysis of Alcohol Ethoxylates and Alkylphenol Ethoxylates
ASTM D 8179 : 2018 Standard Guide for Characterizing Detergents for the Cleaning of Clinically-used Medical Devices

ASTM E 1 : 2014 : REDLINE Standard Specification for ASTM Liquid-in-Glass Thermometers

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PDF - English
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