EPA Method 533 Native Primary Std (br/l mix), 500ng/ml in MeOH, 1,2ml

3,4,6-Trichlorocatechol , 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 32139-72-3

3-Methyl-2,2',4,4'-tetrachlorodiphenylmethane

N-ethylperfluoro-1-octanesulfonamidoacetic acid isomeric mixture, 1.2ml x 50ug/ml, methanol