Polyvinyl Alcohol, USPTest Specification Min Max ACTUAL VISCOSITY OF 4 % SOLUTION @ 20 C VISCOSITY METHOD USED AS REPORTED AS REPORTED pH OF A 4% SOLUTION 5. 0 8. 0 5. 0 8. 0 DEGREE OF HYDROLYSIS 85 89% 85 89% LOSS ON DRYING 5. 0% RESIDUE ON IGNITION 1. 0% ELEMENTAL IMPURITIES AS REPORTED AS REPORTED ACID VALUE 3. 0 WATER INSOLUBLE SUBSTANCES 0. 1 % METHANOL AND METHYL ACETATE TO PASS TEST IDENTIFICATION TO PASS TEST CERTIFIED HALAL EXPIRATION DATE DATE OF MANUFACTURE