Conductance @ 20°C [50 µmho/cm] Back Catalog number: 50222 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92969 EPA Method 526/528 Phenols Standard Price on request 8222.11-100 Carbophenothion, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 786-19-6 Price on request 57726 Iron (Fe) Price on request