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

NPW – Hardness #PEI-137

$67.00

A 250 mL ready-to-use sample packaged in a HDPE bottle to be analyzed for:   (Supplied in duplicate) read more

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Catalog Number:
PEI-137
Study Number

WP-297, WP-298, WP-299, WP-300, WP-301, WP-302, WP-303, WP-304, DMRQA-44

Non-Potable Water NPW PT Study Schedule

2024 NPW PT Study Schedule
Study NumberStudy OpensStudy Closes
WP-297*Jan. 16, 2024Feb. 29, 2024
WP-298March 11, 2024April 24, 2024
WP-299*April 16, 2024May 30, 2024
WP-300May 7, 2024June 20, 2024
WP-301*July 16, 2024Aug. 29, 2024
WP-302Aug. 6, 2024Sept. 19, 2024
WP-303*Oct. 8, 2024Nov. 21, 2024
WP-304Nov. 5, 2024Dec. 19, 2024

Analyte

Magnesium4.0 – 40 mg/L
Calcium10 – 100 mg/L
Total Hardness (CaCO3)40 – 415 mg/L
Calcium Hardness (CaCO3)25 – 250 mg/L

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