Semi-Volatile Surrogate Standard

EPA Method 8121 Analytes

4-Nonylphenol-mono-ethoxylate, 10.0 µg/ml, Aceton

4-n-Dodecylcyclohexanecarboxylic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 871325-02-9