Environmental Reference Materials,  Inorganics - NPW PT,  Non-Potable Water (NPW) PTs,  Proficiency Testing

Full NELAC Inorganics Set – PEI-035K

Set includes:  Demand, Minerals, Residue, Hardness, Simple Nutrients, Nitrite, Silica, Complex Nutrients, Oil & Grease, Bromide, Total Cyanide, MBAs, Total Phenolics, Total Residual Chlorine, Settleable Solids, Trace Metals, Volatile Solids, Mercury, Sulfide, pH, Hexavalent Chromium, and Turbidity. read more

This product is available for purchase on our new website at zeptometrix.com.

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Catalog Number:
PEI-035K
Study Number

WP-297, WP-298, WP-299, WP-300, WP-301, WP-302, WP-303, WP-304, DRMQA

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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