POE (12-13) tert-Octylphenol,neat,neat,100mg,

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)

Hydrochlorothiazide,100 µg/mL,MeOH,1mL,

Fluoride (F-)