Potassium Iodide, USP - S4Test Specification Min Max ASSAY 99. 0 101. 5 % ALKALINITY TO PASS TEST LOSS ON DRYING 1. 0 % IODATE 4 g g NITRATE, NITRITE, AND AMMONIA TO PASS TEST THIOSULFATE, BARIUM TO PASS TEST ELEMENTAL IMPURITIES AS REPORTED IDENTIFICATION (A) TO PASS TEST IDENTIFICATION (B) TO PASS TEST CERTIFIED KOSHER CERTIFIED HALAL RETEST DATE DATE OF MANUFACTURE APPEARANCE RESIDUAL SOLVENTS TO PASS TEST