EPA Method 551.1 Performance Check Soln Back Catalog number: 30114 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70931 2,4-DB methyl ester Price on request 9565.24-50-AN 6:2 TriPAPS, 50µg/mL, Solvent-acetonotrile, Unit 1mL, # of units-1, Cas.no. Price on request 1372.8-5ML 1-Octanol, neat, Solvent-neat, Unit 5mL, # of units-1, Cas.no. 111-87-5 Price on request