EPA Method 525 Surrogate Standard Back Catalog number: 93971 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 15900-0821D-10AN5 Chloridazon-d5, 10µg/ml in Acetonitrile, 5ml Price on request 675549 Chloropropylate, 10.0 µg/ml, Acetonitrile, 10ml Price on request 90127 Aroclor 1248 Price on request