Environmental Reference Materials, Organics - Soil PT, Proficiency Testing, Soil PTs
Organophosphorus Pesticides #SPEO-021
Soil Proficiency Test Schedule
| 2024 SM Soil PT Study Schedule | ||
| Study Number | Study Opens | Study Closes |
| SM-140 | Feb. 6, 2024 | March 21, 2024 |
| SM-141 | March 26, 2024 | May 9, 2024 |
| SM-142 | Aug. 20, 2024 | Oct. 3, 2024 |
| SM-143 | Oct. 21, 2024 | Dec. 4, 2024 |
Analyte
| Azinphos methyl (guthion) | 100-1000 ug/kg |
| Chlorfenvinphos | 100-1000 ug/kg |
| Demeton | 100-1000 ug/kg |
| Demeton-o | 100-1000 ug/kg |
| Demeton-s | 100-1000 ug/kg |
| Diazinon | 100-1000 ug/kg |
| Dichlorovos (DDVP) | 100-1000 ug/kg |
| Disulfoton | 100-1000 ug/kg |
| EPN | 100-1000 ug/kg |
| Ethoprop | 100-1000 ug/kg |
| Famphur | 100-1000 ug/kg |
| Fenthion | 100-1000 ug/kg |
| Malathion | 100-1000 ug/kg |
| Naled | 100-1000 ug/kg |
| Parathion, ethyl | 100-1000 ug/kg |
| Parathion, methyl | 100-1000 ug/kg |
| Phorate | 100-1000 ug/kg |
| Ronnel | 100-1000 ug/kg |
| Sulfotepp | 100-1000 ug/kg |
| Stirophos | 100-1000 ug/kg |
| TEPP | 100-1000 ug/kg |
| Trichlorfon | 100-1000 ug/kg |
| Chlorpyrifos | 100-1000 ug/kg |
