Copper (Cu), 1000µg/ml in 2%-HNO3/Water, 100ml Back Catalog number: 57029 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended S-4453-4K-AC ISO 9377-2MOD Quality Control Standard of Base Oil EDC 95/11 4000µg/mL in acetone, 1x1mL, 5x1mL, 10x1mL Price on request DF-27-S 2,7-Dichlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 50140 AA Mix #2 Price on request