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Standard Test Method for Acid Number (Empirical) of Maleic Anhydride (MAH) Grafted Waxes
STANDARD published on 1.10.2012
Designation standards: ASTM D7389-07(2012)
Note: WITHDRAWN
Publication date standards: 1.10.2012
SKU: NS-38341
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
acid anhydride function, acid number, free acid, MAH grafted waxes, polish, synthetic waxes, titration, waxes, ICS Number Code 75.140 (Waxes, bituminous materials and other petroleum products)
Significance and Use | ||||
4.1 This test method is used to determine the free acid content of MAH-grafted waxes. The potential hydrolysis of the anhydride functionality of this wax in storage makes them unsuitable for determining free acid content by Test Method D1386. Free acid content is a significant quality control test, and is a determinant of the utility of the wax. |
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1. Scope | ||||
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 (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 and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||
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