Hydroxyethyl Cellulose, 5,000 cP, NF - Lengthy BackorderTest Specification Min Max VISCOSITY OF 1% AQUEOUS SOLUTION @25[dC 2500 7500 cP pH (1%) 6. 0 8. 5 LOSS ON DRYING 10. 0% RESIDUE ON IGNITION 5. 0% LEAD (Pb) 0. 001% ELEMENTAL IMPURITIES: ARSENIC AS REPORTED AS REPORTED MERCURY AS REPORTED AS REPORTED COPPER AS REPORTED AS REPORTED IDENTIFICATION TO PASS TEST TO PASS TEST RETEST DATE DATE OF MANUFACTURE APPEARANCE RESIDUAL SOLVENTS: TO PASS TEST TO PASS TEST