EPA Method 8121 Surrogate Standard

Streptomycin Sulfate,neat,neat,100mg,

Propazine-d14 (di-iso-propyl-d14), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1219802-87-5

2,2,4,5-Tetrachlorobiphenyl (BZ-49)