ASTM D4662 Determination of Acid and Alkaline Numbers of Polyols
ASTM D4662 test method evaluates the materials that can dissolve in the mixture of toluene and ethyl alcohol by measuring the acidic and basic content of the polyols. It also determines the acid and alkaline number of many other materials with the exception of polyethers. The final results of this test method can be expressed in SI units, however, there is no standard specified.
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