Octanoic acid, 1000mg

Heptachlor-endo-epoxide (trans-, isomer A), 10µg/ml in CY, 10ml

Propionic acid sodium salt, 1g

EPA O-FID Quantitative Calibration Check Standard (without Internal Standard) 4 Analytes, each Wt.% as listed in RFA Gasoline; units: 1x10mL, 5x10mL Name Wt.% Name Wt.% Methanol 4.0Methyl tert-butyl et