EPA Method 8260B Surrogate Standard

1,2,3-Trichloropropane, 1ml

Carvedilol-d4 (ethyl-d4), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1133705-56-2

iso-Butyl n-pentyl phthalate, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no.