EPA Method 500 Series Internal Std #4

ISO 9377-2Mod Standard Mixture 3 of n-Alkanes and BTEX C7+C8+C9+C10-C40 (all even)+BTEX in n-Pentane Determination of Hydrocarbon Oil in Water Index 25 Analytes, each 50 µg/mL in n-pentane; units: 1mL, 1x5mL, 10x1mL Chiron No. Name Chiron No. Name

Perfluorononanoic acid with branched isomers, 50µg/ml in MeOH, 1,2ml

4-n-Nonylphenol D8 (ring D4-ethylD4), 100 ng/µl, 1.1ml