EPA Method 8270C Pesticide Mix #20 Back Catalog number: 91003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679317 Carbophenothion-methyl, 100 µg/ml, Methanol, 1ml Price on request 683855 Quizalofop-ethyl, 100 µg/ml, Acetonitrile, 5ml Price on request 50824 Conductance @ 20°C [500 µmho/cm] Price on request