Column Evaluation Mix ASTM D-5134

4,4’-DDE

2-n-Propoxy-3(5)-methylpyrazine, Isomer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.

Zonyl® UR, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no.