EPA Method 525.2 - 526 Internal Standard Back Catalog number: 91297 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 82422 Acetone Price on request 675966 D5-Propachlor, 100 µg/ml, Acetonitrile, 1ml Price on request 30002R EPA Method 502.2/524.2/601 - Gases Price on request