EPA Method 552.1 - Surrogate Standard Back Catalog number: 31057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675846 D3-TFNG, 100 µg/ml, Acetonitrile, 1ml Price on request 0404.25-150-CYX5 n-Pentacosane, ?13C: -28.21, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 629-99-2 Price on request 94470 VOC Mix #2 Price on request