Soil(Sandyloam)-Organophosphoruspesticides土壤（砂质壤土）中有机磷农药

Soil fortified with pesticide compounds to meet the requirements of NELAC Fields of Testing. The sample was certified by USEPA SW846 (3rd edition) method 8141A. The sample is suitable for these and other similar methods.

Certified values

Azinophos methyl (guthion) .................... 1.52 mg/kg

Demeton-O............................................ 0.710 mg/kg

Dichlorvos (DDVP)................................ 0.887 mg/kg Diazinon .................................................. 3.76 mg/kg

Demeton-S............................................ 0.525 mg/kg Malathion................................................. 8.02 mg/kg Ronnel................................................... 0.830 mg/kg

Parathion, ethyl ....................................... 4.88 mg/kg Phorate ................................................... 0.48 mg/kg

Stirophos (tetrachlorovinphos) ................ 4.24 mg/kg