Sodium Thiosulfate 0.100 N Aqueous Solution APHA size:20 LT 5 mg KOH/g COLOR (APHA)

5 mg KOH/g COLOR (APHA) 100 MOISTURE 0

Test Specification Min Max ACID VALUE 150 - 180 150 - 180 RESIDUE ON IGNITION 0

3 pH OF A 5% SOLUTION @ 25[dC 6

10% ELEMENTAL IMPURITIES AS REPORTED AS REPORTED ORGANIC IMPURITIES TO PASS TEST TO PASS TEST IDENTIFICATION TO PASS TEST TO PASS TEST EXPIRATION DATE MANUFACTURE DATE RESIDUAL SOLVENTS TO PASS TEST TO PASS TEST

Test Specification Min Max HYDROXYL VALUE 39 - 52 39 - 52 SAPONIFICATION VALUE 80 - 95 80 - 95 ACID VALUE 2

Sodium Thiosulfate 0.100 N Aqueous Solution APHA size:20 LT 5 mg KOH/g COLOR (APHA)Test Specification Min Max ASSAY 0. 100N + 0. 0005 0. 100N + 0. 0005 TRACEABLE TO NIST EXPIRATION DATE MANUFACTURE DATE