Copper (Cu) - 5 PPM Back Catalog number: 50592 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 685008 Dehydroacetic acid sodium salt, 250mg Price on request OXYCHLORD OxyChlordane, 1.2mL x 100ug/mL, nonane Price on request 10938.20-100-ME EDDP-d3 perchlorate,100 µg/mL (as pyrrolinium) ,MeOH,1mL, Price on request