EPA Method 531.1 - Analytes Mixture Back Catalog number: 33042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678153 Thionazin, 100 µg/ml, Acetonitrile, 1ml Price on request 677984 Phosalone, 100 µg/ml, Toluene, 1ml Price on request 678261 Anilofos, 100 µg/ml, Acetonitrile, 1ml Price on request