EPA Method 200.8 Calibration Standard 2 Back Catalog number: 53334 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended X9054 4,4’-DDD Price on request 93223 4,4’-Butylidenebis(6-tert-butyl-m-cresol) Price on request 10112.18-50-IO 1,9-Dimethyl-5-ethylphenanthrene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request