Potassium Hydrogen Phthalate Acidimetric Standard Crystal Reagent Special ACS Inorganic Ventures ICP Single-Component Standards 0002 meq RETEST DATE

0002 meq RETEST DATE

Test Specification Min Max ASSAY 19 21 % (w/v) TRACEABLE TO NIST APPEARANCE EXPIRATION DATE DATE OF MANUFACTURE

Test Specification Min Max APPEARANCE WHITE XTALLINE P WHITE XTALLINE P ASSAY 97% 97%

00% CADMIUM (Cd) 0

Potassium Hydrogen Phthalate Acidimetric Standard Crystal Reagent Special ACS Inorganic Ventures ICP Single-Component Standards 0002 meq RETEST DATETest Specification Min Max ASSAY (C[@8@]H[@5@]O[@4@]K) 99. 95 100. 05 % 99. 95 100. 05 % ASSAY (C[@8@]H[@5@]O[@4@]K) 99. 95 100. 05 % 99. 95 100. 05 % ASSAY (C[@8@]H[@5@]O[@4@]K) 99. 95 100. 05 % 99. 95 100. 05 % ASSAY (C[@8@]H[@5@]O[@4@]K) 99. 95 100. 05 % 99. 95 100. 05 % ASSAY (C[@8@]H[@5@]O[@4@]K) 99. 95 100. 05 % 99. 95 100. 05 % ASSAY (C[@8@]H[@5@]O[@4@]K) 99. 95 100. 05 % 99. 95 100. 05 % pH OF A 0. 05M SOLUTION @ 25[dC 4. 00 4. 02 4. 00 4. 02