EPA Method 531.2 - Analytes Back Catalog number: 34042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680468 3-Ethyltoluene, 100mg Price on request 678531 Chlorpyrifos-methyl, 10 µg/ml, Acetone, 10ml Price on request S-4341-K-HXX10 Quality Control Standard of Mineral Oils 2 2x500µg/ml in n-Hexane i 1ml crimp-top Price on request