Calibration Standard Mix 4 Back Catalog number: 52046 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8CL-PFOS Sodium 8-chloroperfluoro-1-octanesulfonate, 1.2ml x 50ug/ml, methanol Price on request 79178 Endosulfan I Price on request 0619.30-100-IO Friedelane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 559-73-9 Price on request