Copper (Cu) - 5 PPM Back Catalog number: 50592 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70008 Halogenated Volatiles #2 (Gases) - MISA Price on request 677832 Ioxynil-octanoate, 10 µg/ml, Isooctane, 10ml Price on request 54460 Linear Alkylate Benzene Sulfonate Price on request