Metals Mix Back Catalog number: 59229 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 30555 EPA Method 555 Phenoxy-acids Herbicides Price on request 72810 Heptadecafluorooctanesulfonic acid, 1000µg/ml in MeOH, 1ml Price on request 98430 EPA 8240B Calibration Standard Price on request