RCRA Metals in Soil #1 Back Catalog number: 55102 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3742.12-100-IO 2,3,4,4',5,6-Hexachlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 41411-63-6 Price on request 50009 Fluoride (F-) Price on request 71746 Ethyl 4-hydroxybenzoate Price on request