... , pls contact us Product Name : Sodium BicarbonateProduct Date: Nov. 1, 2008Lot No: 4300D50082008137Analyze Date: Nov. 1, 2008The National Standard: GB1887-1998Expiry ... Date: Nov. 1, 2009ItemThe NationalStandardResultThe Total Alkalinity Content(NaHCO3)%99 ... %≤0.20%0.02%PH Value(10g/l)Solution≤8.68.32Arsentic Content%≤0.0001%PASSHeavy Metal Content≤0. ...