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Document Designation and Title Year Select Item(s) D4662 Standard Test Methods for Polyurethane Raw Materials: Determination of Acid and Alkalinity Numbers of Polyols 08 D4662 Standard Test Methods for Polyurethane Raw Materials: Determination of Acid and Alkalinity Numbers of Polyols 03 D4662 Standard Test Methods for Polyurethane Raw Materials Determination of Acid and Alkalinity Numbers of Polyols 98