50 ug/mL in P/T Methanol. Standard contains: Benzene, n-nonane(c9), n-butylcyclohexane, n-pentane(c5), n-decane(c10), Toluene, 2,5-Dibromotoluene, 1,2,4-Trimethylbenzene, Ethylbenzene, 2,2,4-Trimethylpentane, 2-Methylpentane, m-Xylene, MTBE, o-Xylene, Naphthalene, and p-Xylene. Stores refrigerated. A NIST traceable reference material. 1.5mL ampule.
