EPA Method 8121 Internal Standard Back Catalog number: 81203 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10900-0450-100ME5 trans-1,2-Dichloroethylene, 100µg/ml in MeOH, 5ml Price on request 93846 Pesticide Mix #1 Price on request 673815 Cyhexatin, 10.0 µg/ml, Cyclohexane, 10ml Price on request