Potassium Hydrogen Phthalate Acidimetric Standard Crystal Reagent Special ACS Inorganic Ventures ICP Single-Component Standards Test Specification Min Max APPEARANCE

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

3 LEAD 5 ppm LOSS ON DRYING 0

00% CADMIUM (Cd) 0

Test Specification Min Max APPEARANCE WHITE POWDER WHITE POWDER

Potassium Hydrogen Phthalate Acidimetric Standard Crystal Reagent Special ACS Inorganic Ventures ICP Single-Component Standards Test Specification Min Max APPEARANCETest 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