EPA Method 552,552.1,552.2 Internal Std

Di-iso-nonyl phthalate in mixture with C8-10-branched alkyl o-phthalate , C9-rich, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 68515-48-0

Naphthalene-d8, 1000µg/ml in MeOH, 1ml

2-Methylheptane, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 592-27-8