Copper (Cu) - 7 PPM Back Catalog number: 50744 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 54005 Total Mercury (Hg) Price on request 0716.13-K-IO 2-Isopropylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2027-17-0 Price on request 680050 Diethyldithiophosphate, 250mg Price on request