Environmental Reference MaterialsInorganics - NPW PTNon-Potable Water (NPW) PTsProficiency Testing

NPW – Total Residual Chlorine #PEI-033

$47.00

A 2.2 mL concentrate for determination of Total Residual Chlorine.  Formulated in the NELAC range of 0.5 - 3.0 mg/L. Each ampule produces 2 liters of sample. (Supplied in duplicate).     read more

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Catalog Number:
PEI-033
Study Number

WP-261, WP-262, WP-263, WP-264, WP-265, WP-266, WP-267, WP-268, WP-269, WP-270, All

2020 NPW Study Schedule

2020 NPW Study Schedule

Study Number Study Opens Study Closes
WP-262 Jan. 14 Feb. 27, 2020
WP-264 April 8 May 22, 2020
WP-266 July 15 Aug. 28, 2020
WP-269 Oct. 7 Nov. 20, 2020