Buffer Hydrion(R) Dry pH 12.00 +/- 0.02 size:1 PK Test Specification Min Max PURITY

Test Specification Min Max PURITY (GC) 98% 98% MELTING POINT 199

005 TRACEABLE TO NIST APPEARANCE EXPIRATION DATE MANUFACTURE DATE

5 WATER DETERMINATION 2

Test Specification Min Max APPEARANCE Slightly pale ye Slightly pale ye EXPIRATION DATE DATE OF MANUFACTURE

0mm�/ ACIDITY TO PASS TEST TO PASS TEST READILY CARBONIZABLE SUBSTANCES TO PASS TEST TO PASS TEST SOLID PARAFFIN TO PASS TEST TO PASS TEST POLYCYCLIC AROMATIC HYDROCARBONS TO PASS TEST TO PASS TEST SULFUR COMPOUNDS 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

Buffer Hydrion(R) Dry pH 12.00 +/- 0.02 size:1 PK Test Specification Min Max PURITY