Calibration Standard Set Back Catalog number: 52042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71001 4-Ethyltoluene Price on request 9657.12-100-IO 2,3',4',5',6-Pentachlorobiphenyl, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 74472-39-2 Price on request PFAC-MXI Native N-Me/EtFOSA & N-Me/EtFOSE, in MeOH, 1,2ml Price on request