EPA Method 508 Pesticide Standard Back Catalog number: 92961 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675922 Pentachloroanisole, 10.0 µg/ml, Cyclohexane, 10m Price on request 96562 Protriptyline HCl Price on request 52011A Calibration Standard Mix 2 Price on request