Urea Ultrapure IC Anion Standards 00% ELEMENTAL IMPURITIES AS REPORTED

00% ELEMENTAL IMPURITIES AS REPORTED IDENTIFICATION TO PASS TEST RETEST DATE DATE OF MANUFACTURE APPEARANCE RESIDUAL SOLVENTS

50% IDENTIFICATION TO PASS TEST TO PASS TEST EXPIRATION DATE

843 REFRACTIVE INDEX @ 20[dC 1

Test Specification Min Max ASSAY (ANHYDROUS BASIS) 91 100

Urea Ultrapure IC Anion Standards 00% ELEMENTAL IMPURITIES AS REPORTEDTest Specification Min Max ASSAY (CH[@4@]N[@2@]O) 99. 50% MELTING POINT 132 135C 132 135C SOLUBILITY IN WATER TO PASS TEST TO PASS TEST BIURET TEST TO PASS TEST TO PASS TEST ABSORBANCE OF A 5 M SOLUTION @ 280 NM 0. 05 INSOLUBLE MATTER 0. 01% CYANATE 0. 00% CHLORIDE (Cl) 0. 00% HEAVY METALS (as Pb) 0. 00% IRON (Fe) 0. 00%