Environmental Reference Materials,  Inorganics - NPW PT,  Proficiency Testing

EPA Inorganics NPW Set – PEI-037K

Set includes:  Demand, Total Phenolics, Minerals, Total Residual Chlorine, Hardness, pH, Trace Metals, Simple Nutrients, Mercury, Complex Nutrients, Oil & Grease, Residue, Total Cyanide and Hexavalent Chromium. read more

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Catalog Number:
PEI-037K
Study Number

WP-296

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

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