Soil Conductance [0.5-1.5mS/cm] Back Catalog number: 55200 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3844.6-K-IP Hydroquinone, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 123-31-9 Price on request 1593.16-100-IO 4-Hydroxy-11H-indolo[2,3-f]naphthalene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 23682-01-1 Price on request 79623 p-Benzoquinone Price on request