EPA Method 548.1 Analyte Back Catalog number: 30077 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70204 p-Isopropyl toluene Price on request 1171.20-K-IO 10-Methylnonadecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 56862-62-5 Price on request 33511 1-Chloro-1,1-difluoroethane, 20mg/mL in MeOH, 1ml Price on request