EPA Method 1657 Analytes Back Catalog number: 31784 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676624 3-(2,2-Dichloroethenyl)-2,2-dimethylcyclopropaneca Price on request EC9605-PAR Precision and Recovery Solution, 1.2ml, isooctane Price on request 57071 Lutetium (Lu) Price on request