EPA Method 507 - Internal Standard Back Catalog number: 19031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4236-100-IO ISO 10382 Multicomponent Stock Solution of PCBs “Dutch Seven” PCBs in isooctane, 10µg/mL each, 1x1ml, 5x1ml, 10x1ml 100µg/mL each, 1x1ml, 5x1 ml, 10x1 ml 200µg/mL each, 1x1ml, 5x1ml, 10x1ml Price on request 71616 Cycloheptane Price on request 673259 Dimethoate, 100 µg/ml, Acetonitrile, 5ml Price on request