EPA Method 8260 Internal Standard - Revised Back Catalog number: 21013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73345 Propylene glycol propyl ether Price on request 675707 4-Nonylphenol-mono-ethoxylate, 10.0 µg/ml, Methan Price on request M226234 Metazachlor Ethane Sulfonic Acid-d6 Sodium Salt, 1mg Price on request