EPA Method 551.1 Performance Check Soln

Quinclorac, 10.0 µg/ml, Acetonitrile, 10ml

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Heavy White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)

1-Aminonaphthalene-d7, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 78832-53-8