1,3,4,7-Tetrachlorodibenzofuran , 1.2ml x 50ug/ml, nonane

1,2,4-Trichlorobenzene, 1000µg/ml in MeOH, 1ml

n-Butyl n-pentyl phthalate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 3461-29-8

EPA Method 525 - Perchlorinates