ASTM D7389 - 07(2019) - Standard Test Method for Acid Number (Empirical) of Maleic Anhydride (MAH) Grafted Waxes

ASTM D7389 - 07(2019)

Standard Test Method for Acid Number (Empirical) of Maleic Anhydride (MAH) Grafted Waxes

Status : Current   Published : July 2019

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PDF

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HARDCOPY



1.1 This test method covers the determination of the acid number of maleic anhydride (MAH) grafted waxes. The number is obtained by direct titration of the material and indicates the amount of free acid present.

1.2 This test method is applicable to MAH-grafted waxes because it uses a special sample preparation step ( 7.1) that is not required for other waxes. The special sample preparation reverses the hydrolysis of acid anhydride that can occur during storage of the wax.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4  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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5  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 D7389 - 07(2019)
TitleStandard Test Method for Acid Number (Empirical) of Maleic Anhydride (MAH) Grafted Waxes
StatusCurrent
Publication Date01 July 2019
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 acid anhydride function, acid number, free acid, MAH grafted waxes, polish, synthetic waxes, titration, waxes
ICS75.140
PublisherASTM
FormatA4
DeliveryYes
Pages2
File Size58 KB
Price£36.00


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