EPA Method 537 Analyte Primary Dilution Standard, 2000ng/ml in MeOH, 1,2ml Back Catalog number: EPA-537PDSL-R1 Availability: In the manufacturer's stock Price on request - + Recommended 673503 Carbophenothion, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 59936 ICP-MS Verification Standard #1A Price on request 72461 Pentabromophenyl ether Price on request