EPA Method 508A DCB Stock Solution Back Catalog number: 30020 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 90289 Methylnaphthalene Standard Price on request 3999.10-K-CY Isobutylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 1678-98-4 Price on request 681520 Tepraloxydim Metabolite OH-GP, 100 µg/ml, Acetoni Price on request