EPA Method 531.1 - Analytes Mixture Back Catalog number: 33042R Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2093.15-K-IP 4-Ethylphenol-d4-PFB, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 100-58-8 Price on request L429-CS1,2,3,4,5 Individual Calibration Solutions , 1.0ml, isooctane Price on request 676776 Metrafenone, 10 µg/ml, Cyclohexane, 10ml Price on request