EPA Method 8240A Internal Standard Back Catalog number: 22003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3599.14-K-IO 4-Methyltridecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 26730-12-1 Price on request 63003 4-Chlorobiphenyl (3) Price on request 2763.7-1ML 4-Chloro-2-methylaniline, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 95-69-2 Price on request