Copper AA Standard (Cu) Back Catalog number: 50462 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679903 Epichlorohydrin, 100 µg/ml, Acetone, 1ml Price on request 678495 Pyridaphenthion, 100 µg/ml, Acetonitrile, 5ml Price on request 52143 EPA 1620 Standard 5 Price on request