Environmental Reference Materials, Non-Potable Water (NPW) PTs, Organics - NPW PT, Proficiency Testing
NPW – OP Pesticides #PEO-100
Non-Potable Water NPW PT Study Schedule
2024 NPW PT Study Schedule | ||
Study Number | Study Opens | Study Closes |
WP-297* | Jan. 16, 2024 | Feb. 29, 2024 |
WP-298 | March 11, 2024 | April 24, 2024 |
WP-299* | April 16, 2024 | May 30, 2024 |
WP-300 | May 7, 2024 | June 20, 2024 |
WP-301* | July 16, 2024 | Aug. 29, 2024 |
WP-302 | Aug. 6, 2024 | Sept. 19, 2024 |
WP-303* | Oct. 8, 2024 | Nov. 21, 2024 |
WP-304 | Nov. 5, 2024 | Dec. 19, 2024 |
Analyte
Azinphos-methyl(Guthion) | 3.6-13.8 ug/L | Dichlorvos | 2.0-20 ug/L |
Bolstar | 2.0-20 ug/L | Ethion | 2.0-20 ug/L |
Chlorpyrifos | 2.0-20 ug/L | Ethoprop | 2.0-20 ug/L |
Demeton-o | 2.0-20 ug/L | Malathion | 2.0-20 ug/L |
Demeton-s | 2.0-20 ug/L | Parathion, ethyl | 2.0-20 ug/L |
Diazinon | 2.0-15 ug/L | Stirophos | 2.0-20 ug/L |
Disulfoton | 2.0-15 ug/L | Tokuthion | 2.0-20 ug/L |
Dichlofenthion | 2.0-20 ug/L | Trichloronate | 2.0-20 ug/L |
2021 NPW Study Schedule
Study Number | Study Opens | Study Closes |
WP-271 | Jan. 13 | Feb. 26 |
WP-273 | April 12 | May 26 |
WP-275 | July 14 | Aug. 27 |
WP-278 | Oct. 11 | Nov. 24 |