Tris(hydroxymethyl)aminomethane Phosphate Monobasic Indoles 20% ABNORMAL TOXICITY TO PASS

20% ABNORMAL TOXICITY TO PASS TEST TO PASS TEST ELEMENTAL IMPURITIES AS REPORTED AS REPORTED IDENTIFICATION TO PASS TEST TO PASS TEST EXPIRATION DATE DATE OF MANUFACTURE APPEARANCE RESIDUAL SOLVENTS TO PASS TEST TO PASS TEST

20% CHLORIDE (Cl) 0

Test Specification Min Max URANIUM 995 - 1005 ppm 995 - 1005 ppm STANDARDIZED AGAINST NIST 3164 3164 EXPIRATION DATE

5 % ALKALINITY TO PASS TEST LOSS ON DRYING 12

Tris(hydroxymethyl)aminomethane Phosphate Monobasic Indoles 20% ABNORMAL TOXICITY TO PASSTest Specification Min Max ASSAY (by TITRATION) 98. 00% pH OF A 0. 1M SOLUTION @ 25[dC 4. 0 4. 5 4. 0 4. 5 ABSORBANCE OF A 0. 1 M SOLUTION @ 280 nm 0. 05 HEAVY METALS (as Pb) 10 ppm