EPA Method 502.1 - Liquids Back Catalog number: 30008 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 81504 2,4,5-TP methyl ester Price on request GLC-674 GLC Reference standard 674, 100mg Price on request 0029.22-200-T Pentaphene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 222-93-5 Price on request