Drinking Water Chemistry WS Proficiency Study Schedule
2024 WS Drinking Water Chemistry PT Study Schedule | ||
Study Number | Study Opens | Study Closes |
WS-137 | Jan. 8, 2024 | Feb. 21, 2024 |
WS-138 | April 3, 2024 | May 17, 2024 |
WS-139 | July 2, 2024 | Aug. 15, 2024 |
WS-140 | Oct. 15, 2024 | Nov. 28, 2024 |
Analyte
Diethyl phthalate | 10-50 ug/L | Benzo(b)fluoranthene | 1-10 ug/L |
Butyl benzyl phthalate | 10-50 ug/L | Benzo(k)fluoranthene | 1-10 ug/L |
Dimethyl phthalate | 10-50 ug/L | Benzo(g,h,i)perylene | 1-10 ug/L |
Benzo(a)pyrene | 0.2-2.5 ug/L | bis(2-Ethylhexyl)phthalate | 5-50 ug/L |
bis(2-Ethylhexyl)adipate | 8-50 ug/L | Chrysene | 1-10 ug/L |
Di-n-octylphthalate | 10-50 ug/L | Dibenz(a,h)anthracene | 1-10 ug/L |
Acenaphthene | 1-10 ug/L | Fluoranthene | 1-10 ug/L |
Acenaphthylene | 1-10 ug/L | Fluorene | 1-10 ug/L |
Anthracene | 1-10 ug/L | Indeno(1,2,3-c,d)pyrene | 1-10 ug/L |
Benzo(a)anthracene | 1-10 ug/L | Naphthalene | 5-50 ug/L |
Phenanthrene | 1-10 ug/L | Pyrene | 1-10 ug/L |
1-Methylnaphthalene | 1-10 ug/L | 2-Methylnaphthalene | 1-10 ug/L |
Di-n-butylphthalate | 10-50 ug/L |