Methylene Chloride Hydrocarbon Stabilized Exceeds A.C.S. Specifications HPLC Grade size:4 LT ON 70 MESH 15% PARTICLE

ON 70 MESH 15% PARTICLE SIZE

Test Specification Min Max ERBIUM 995 - 1005 ppm 995 - 1005 ppm STANDARDIZED AGAINST NIST 3116 3116 EXPIRATION DATE

Test Specification Min Max APPEARANCE WHITE WAXY SOLID WHITE WAXY SOLID CETYL ALCOHOL 45

Test Specification Min Max ASSAY (by TITRATION) 98% 98%

Methylene Chloride Hydrocarbon Stabilized Exceeds A.C.S. Specifications HPLC Grade size:4 LT ON 70 MESH 15% PARTICLETest Specification Min Max ASSAY (by GC) 99. 90% APPEARANCE CLEAR CLEAR COLOR (APHA) 10 ULTRAVIOLET ABSORBANCE (1 cm cell vs. water) TO PASS TEST TO PASS TEST RESIDUE AFTER EVAPORATION 4 ppm TITRABLE ACID 0. 3 ueq g FREE HALOGENS TO PASS TEST TO PASS TEST WATER 0. 02% RETEST DATE