Verification II Standard 1 Back Catalog number: 52019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 52335 Mixed Calibration Standard 1 Price on request XA11290000AL Chlorfenvinphos, 100µg/mL in Acetonitrile, 1ml Price on request 680343 Pyrazoxyfen, 100 µg/ml, Acetonitrile, 1ml Price on request