A 28 component standard of the following at 100ug/mL each (except where noted)in pesticide grade acetone: o,p'-DDD, p.p'-DDD, demeton-s-methyl, dialifos, dichlormid, diclofop methyl, dimethachlor, diphenamid, edifenphos, etaconazole, ethofumesate, ethoprophos, ethylan, etridiazole, etrimphos, fenamiphos, fenarimol, fenpropathrin, fenson, fensulfothion, flamprop isopropyl, flamprop methyl, fluchloralin, flumetralin, fluorochloridone, fluorodifen, methiocarb, propxur. 1.5mL per ampule.