ASTM D2024 - 09(2017) - Standard Test Method for Cloud Point of Nonionic Surfactants

ASTM D2024 - 09(2017)

Standard Test Method for Cloud Point of Nonionic Surfactants

Status : Current   Published : April 2017

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PDF

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HARDCOPY



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.

1.4  This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.




Standard NumberASTM D2024 - 09(2017)
TitleStandard Test Method for Cloud Point of Nonionic Surfactants
StatusCurrent
Publication Date01 April 2017
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Cloud Point, Non-Ionic Surfactants, Solubility
ICS71.100.40
PublisherASTM
FormatA4
DeliveryYes
Pages2
File Size54 KB
Price£36.00


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