Internal & Surrogate Standard 8260B

1,2,4-Trimethylanthracene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 20153-28-0

beta-HCH, 100 µg/ml, Methanol, 1ml

1-Butanol, certified, 5ml