EPA Method 8121 Internal Standard Back Catalog number: 81203 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1962.12-5MG 2,2',4,4'-Tetrabromodiphenyl ether, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 5436-43-1 Price on request 52066 Spiking Standard 3 Price on request C14287500 Indan, certified, 0.1g Price on request