EPA Method 8240A Internal Standard Back Catalog number: 22003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended HPCB-4009N 4-Hydroxy-2',3,5,5'-tetrachlorobiphenyl, 10mg Price on request 9285.10-100MG Stavudine, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 3056-17-5 Price on request 1811.12-50-T Decabromodiphenyl ether, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1163-19-5 Price on request