Verification II Standard 2 Back Catalog number: 52020 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 20021 Toxaphene Price on request S-4190-ASS-5RFX5 EPA O-FID Quantitative Calibration Check Standard (with Internal Standard) 5 Analytes, each Wt.% as listed in RFA Gasoline; units: 1x5mL, 5x5mL Name Wt.% Name Wt.% Methanol 3.80Methyl tert-buty Price on request DF-IS-G40 Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane Price on request