Potassium tert-Butoxide (12 Percent in Tetrahydrofuran ca. 1mol/L) Synthetic Antimicrobials for Research and Experimental Use Test Specification Min Max APPEARANCE

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

0% RETEST DATE

10% INSOLUBLE MATTER TO PASS TEST TO PASS TEST CHLORIDE (Cl) 0

Test Specification Min Max BARIUM 995 - 1005 ppm 995 - 1005 ppm STANDARDIZED AGAINST NIST 3104 3104 EXPIRATION DATE

50% ELEMENTAL IMPURITIES: NICKEL (Ni) AS REPORTED AS REPORTED CHROMIUM (Cr) 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

Potassium tert-Butoxide (12 Percent in Tetrahydrofuran ca. 1mol/L) Synthetic Antimicrobials for Research and Experimental Use Test Specification Min Max APPEARANCE