delta-HCH, certified, 50mg

Triton X-100 (n=4-17), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 9002-93-1

Sulfur Standard 1 Unit: 10mL screw cap bottle Chiron No. Matrix: Methanol Compound Concentration S-4072 Diethyl sulfide 0.5 ppm (w/w) Di-n-butyl sulfide 0.5 ppm (w/w)

Alkalinity as Calcium Carbonate