Fields of Proficiency Testing

The PT program is organized by fields of proficiency testing. The following elements collectively define fields of proficiency testing:

a) matrix type,
b) technology/method, and
c) analyte.

Note: Laboratories are permitted to analyze one PT sample by multiple methods for a given analyte within a technology. If a laboratory reports more than one method per technology per study, an unacceptable result for any method would be considered a failed study for that technology for that analyte.

Laboratories that seek to obtain or maintain accreditation shall perform analyses of PT samples for each field of proficiency testing. PT samples shall be obtained from designated approved PT Providers. The laboratory shall obtain PT samples from any so approved PT Provider. The results of the analyses shall be submitted to the PT Provider for scoring.

---

---

Note that all tables are available both as a Microsoft Excel (xls) and an Adobe Acrobat Portable Document Format (pdf) file.

Drinking Water Fields of Proficiency Testing (FoPT)

Chemistry and Microbiology
The table below contains a listing of the approved drinking water (potable water) fields of proficiency testing (FoPT) analytes and acceptance limits for all analytes except radiochemistry.
DW_FOPT_2012_01_03.xls
DW_FOPT_2012_01_03.pdf

Radiochemistry
The table below contains a listing of the approved drinking water (potable water) fields of proficiency testing (FoPT) analytes and acceptance limits for all radiochemistry analytes .
DW_RAD_FOPT_Eff_2007_10_01-2.xls
DW_RAD_FOPT_Eff_2007_10_01-2.pdf

Experimental Analytes
Experimental FoPT tables have been removed from the website as of March 3, 2011. Please see the attached memorandum for further information: PT Executive Committee Memorandum on Experimental PTs

Non-Potable Water (NPW) Fields of Proficiency Testing (FoPT)

Chemistry and Microbiology
The attached table contains a listing of the approved wastewater or non-potable water fields of proficiency testing (FoPT) analytes and acceptance limits.

Current Table	Future Table Effective 07-01-2013
NPW_FOPT_2011_10_03.xls NPW_FOPT_2011_10_03.pdf	NPW_FoPT_ eff 070113 corrected.xls NPW_FoPT_ eff 070113 corrected.pdf

Whole Effluent Toxicity
The NELAP Board has adopted, new proficiency testing (PT) limits for Whole Effluent Toxicity (WET) that are effective April 1, 2009.
NPW WETT FoPT Table 2009.xls
NPW WETT FoPT Table 2009.pdf

Experimental Analytes
Experimental FoPT tables have been removed from the website as of March 3, 2011. Please see the attached memorandum for further information: PT Executive Committee Memorandum on Experimental PTs

Solid and Chemical Materials (SCM) Fields of Proficiency Testing (FoPT)

Accreditation Analytes
The attached table contains a listing of the approved Solid and Chemical Materials fields of proficiency testing (FoPT) analytes and acceptance limits.
SCM_FOPT_2012_01_03.xls
SCM_FOPT_2012_01_03.pdf

Experimental Analytes
Experimental FoPT tables have been removed from the website as of March 3, 2011. Please see the attached memorandum for further information: PT Executive Committee Memorandum on Experimental PTs