EPA Method 8140/8141 Analytes Back Catalog number: 81400 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 50786 Lanthanoids Mix Price on request 92262 PCB Congeners Price on request 673929 Imazapyr, 10.0 µg/ml, Acetonitrile, 10ml Price on request