EPA Method 548 Analyte Back Catalog number: 30147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1273.9-K-CY 1-Ethyl-3-methylbenzene (3-ethyltoluene, m-ethyltoluene), 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 620-14-4 Price on request 3182.13-K-IO Ethyl undecanoate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 627-90-7 Price on request 54125 Total Dissolved Solids Price on request