EPA Method 525 - Internal Standard Back Catalog number: 30031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 30841 Methiocarb,100µg/ml in MeOH, 1ml Price on request 676551 D6-Pirimiphos-methyl, 100 µg/ml, Acetonitrile, 1 Price on request 673996 Bentazone, 100 µg/ml, Acetonitrile, 5ml Price on request