Internal Standard ASTM D-5307 Back Catalog number: 51124 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0273.24-10MG Dibenzo[a,k]fluoranthene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 84030-79-5 Price on request 2004.12-100-IO 2,2',4,4',5,5'-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 35065-27-1 Price on request 9341.13-100-IO Benzophenone-d10, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 22583-75-1 Price on request