Prothoate, 10 ng/µl, 10ml

EPA Method 537 Surrogate Primary Dilution Standard, in MeOH, 1,2ml

1,2,3,7,9-Pentachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

2,3,5,6-Tetrabromo-p-xylene, 1.2ml x 50ug/ml , toluene