EPA Method 502.2 Internal Standard Back Catalog number: 91703 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 83575 2,4,5-TP Price on request 3346.6-100 Clopyralid, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 1702-17-6 Price on request 20243 CLP Volatiles - Low Concentration Mix #2 Price on request