Gas Internal/Surrogate Standard Back Catalog number: 92805 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79456 Halothane Price on request 59502 Multi-Element Internal Standard Price on request 0329.16-100-TX10 Pyrene-d10, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 1718-52-1 Price on request