EPA Method 8141/1657 Surrogate Standard

ASTM D-4815 Calibration Mix #3

4-Isobutylbenzoic acid, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 38861-88-0

Acibenzolar-S-methyl, 10.0 µg/ml, Ethyl acetate,