EPA Method 550 Analytes Back Catalog number: 31051 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4382-K-IPX5 EPA 8041A Surrogate Standard S-4382 1mg/mL in isopropanol, 1 mL, 5 x 1mL, 5mL 2,4-Dibromophenol Price on request 679414 13C6-Closantel, 10mg Price on request 90889 Metolachlor, 100µg/ml in MeOH, 1ml Price on request