EPA Method 509 Internal Standard

Phenyl 2-hydroxybenzoate, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 118-58-1

1,2,3,4-Tetrachlorodibenzo-p-dioxin, 1.2ml x 50ug/ml, nonane

Anions Mix 2, varied µg/ml in Water, 100ml