PCB 28, 10.0 µg/ml, Isooctane, 10ml Back Catalog number: 680572 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 50627 Nitrite (NO2-) as N Price on request 38070 PT Semi-Volatiles in Non-Potable Water - CLP Price on request 35021 EPA Method 502/524 Volatile Standard Price on request