Acetonitrile Exceeds A.C.S. Specifications HPLC Grade size:1 LT 52 EXPIRATION DATE

52 EXPIRATION DATE

50% ARSENIC (As) 8 ppm HEAVY METALS 0

Test Specification Min Max ASSAY 35

5� to 0� PHENOLS TO PASS TEST TO PASS TEST REFRACTIVE INDEX @ 20[dC 1

20% LEAD (Pb) 4 mg/kg LOSS ON IGNITION 0

Acetonitrile Exceeds A.C.S. Specifications HPLC Grade size:1 LT 52 EXPIRATION DATETest Specification Min Max ASSAY (by GC) 99. 90% ULTRAVIOLET ABSORBANCE (1 cm cell vs. water) @ 190 nm 1 @ 200 nm 0. 05 @ 210 nm 0. 04 @ 220 nm 0. 02 @ 230 nm 0. 01 @ 235 400 nm 0. 005 COLOR (APHA) 10 RESIDUE AFTER EVAPORATION 2 ppm TITRABLE ACID 8 ueq g TITRABLE BASE 0. 6 ueq g LC GRADIENT ELUTION SUITABILITY TO PASS TEST TO PASS TEST WATER 0. 02% RETEST DATE