EPA Method 502/524 Surrogate Standard #2 Back Catalog number: 19267 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681823 Dimethyldioctylammonium bromide, 100 µg/ml, Aceto Price on request L12625000AL Difethialone, 10 µg/mL in Acetonitrile, 10mL Price on request 43028 GC/MS Calibration Standard Mix #2 Price on request