4-n-Octylphenol-di-ethoxylate, 1 µg/ml, Acetone,

8:2 Di-PAPS-d4, neat, Solvent-neat, Unit ca. 50 µg, # of units-1, Cas.no.

n-Hexacosane-d54, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1219803-91-4

EPA Method 8260B Mix #5