EPA Method 524 & 624 - Internal Standard Back Catalog number: 19494 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673126 Basic violet 3, 250mg Price on request 10677.29-100UG (24R)-24-Ethylcholesta-3,5-diene,neat,neat,100 µg, Price on request XA13719000AL Flumethrin, 100µg/ml in Acetonitrile, 1ml Price on request