Hypromellose, Substitution Type 2910, 4000 mPa.s, USPTest Specification Min Max VISCOSITY OF A 2% AQUEOUS SOLUTION @ 20D [dC 3000 5600mPas ASSAY (METHOXY GROUPS) 28. 0 30. 0% ASSAY: HYDROXYPROPOXY GROUPS 7. 0 12. 0% pH 5. 0 8. 0 LOSS ON DRYING 5. 0% RESIDUE ON IGNITION 1. 5% ELEMENTAL IMPURITIES: NICKEL (Ni) AS REPORTED AS REPORTED CHROMIUM (Cr) AS REPORTED AS REPORTED IDENTIFICATION TO PASS TEST TO PASS TEST RETEST DATE MANUFACTURE DATE APPEARANCE RESIDUAL SOLVENTS TO PASS TEST TO PASS TEST