EPA Method 525 - Internal Standard Back Catalog number: 30031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 12048.23-10-AN alpha-Cyhalothrin,10 µg/mL,acetonitrile,1mL, Price on request 72235 Pindolol Price on request 15900-5040-100AC5 Trifluralin, 100µg/ml in Acetone, 5ml Price on request