EPA Method 525.2 Pesticide Level 5 Back Catalog number: 92842 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95275 PCB Mix 3.0 ppb Price on request 70090 Chlorpyrifos Price on request 12153.3-250MG 2-Chloropropene,neat,neat,250mg, Price on request