EPA Method 502/524 Surrogate Standard #1 Back Catalog number: 30070 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680928 Thionazin, 10.0 µg/ml, Acetonitrile, 10ml Price on request 67018 Antioxidants - Tocopherol Price on request 0411.40-150-CYX10 n-Tetracontane, ?13C: -27.05, 150ug/ml, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. 4181-95-7 Price on request