EPA Method 552.2 - Surrogate Standard Back Catalog number: 30109 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 684729 AQC, 10mg Price on request 676858 Glufosinate-ammonium, 100mg Price on request 676831 Disperse Blue 106, 50.0 µg/ml, Acetonitrile, 5ml Price on request