iso-Chloridazon, 100 µg/ml, Acetonitrile, 1ml

13C3-Caffeine, 100 µg/ml, Methanol, 1ml

m-Quarterphenyl, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1166-18-3

SDWA Solids (Total Solids, TSS, & TDS)