EPA Method 200.8 Back Catalog number: 50769 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 59866 Multi-Elements Mix #1 Price on request 9878.17-50-IO 1,2,5-Trimethylphenanthrene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 146448-87-5 Price on request 677671 4,4'-Bis(a,a-dimethylbenzyl)diphenylamine, 250mg Price on request