EPA Method 548.1 Internal Standard Back Catalog number: 30078 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681944 Triazoxide, 100 µg/ml, Acetonitrile, 5ml Price on request S-4108-50-PEX5 ISO 9377-2 Standard Mixture of n-Alkanes C10-C40 (all even) Determination of Hydrocarbon Oil in Water Index 16 Analytes, each 50 µg/mL in n-Pentane; units: 1x1mL, 1x5mL, 10x1mL This standard is also available as 100µg/mL in Cyclohexane Units: 1x1 Price on request 0046.20-100-T 3-Nitroperylene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 20589-63-3 Price on request