EPA Method 552 Surrogate Standard Methyl Ester

2-Chloro-5-methylphenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 615-74-7

Octocrylene, 100 µg/ml, Acetonitrile, 1ml

Triton X-405