EPA Method 528 Internal Standard Back Catalog number: 93188 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9208 2,4,6-Trichlorophenol Price on request 15900-4012-100AN5 Pirimiphos-methyl-N-desethyl, 100µg/ml in Acetonitrile, 5ml Price on request 93579 Semi-Volatile Mix #2 Price on request