3-Amino-15-naphthalenedisulfonic Acid Disodium Salt size:25 GM Test Specification Min Max APPEARANCE

Test Specification Min Max APPEARANCE YELLOW POWDER YELLOW POWDER PARTICLE SIZE 40- 80 MESH 40- 80 MESH MOISTURE 8% MICROBIAL LIMITS: ESCHERICHIA COLI NONE DETECTED NONE DETECTED SALMONELLA NONE DETECTED NONE DETECTED

Test Specification Min Max ASSAY (Ag[@2@]O) 99

00% WATER-INSOLUBLE MATTER TO PASS TEST TO PASS TEST AMINES AND AMINE SALTS TO PASS TEST TO PASS TEST IDENTIFICATION TO PASS TEST TO PASS TEST EXPIRATION DATE DATE OF MANUFACTURE APPEARANCE RESIDUAL SOLVENTS TO PASS TEST TO PASS TEST

1 ppb HAFNIUM 0

Test Specification Min Max ASSAY 85% ACTIVITY (CALCIUM) 19% ACTIVITY (MAGNESIUM) 9% EXPIRATION DATE

3-Amino-15-naphthalenedisulfonic Acid Disodium Salt size:25 GM Test Specification Min Max APPEARANCE