EPA Method 537 Analyte Primary Dilution Standard (linear isomers only), 1.2ml, methanol Back Catalog number: EPA-537PDSL-R1 Availability: In the manufacturer's stock Price on request - + Recommended 66127 3,3',4,5,5'-Pentachlorobiphenyl (127) Price on request 70953 Under Review use P#79359 Price on request 79258 Dacthal Price on request