Inorganics - WS PTProficiency Testing

WS – Hardness #PEI-145

$76.00

A 250 mL whole volume sample for determination of: (Supplied in duplicate) read more

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Catalog Number:
PEI-145
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WS-137, WS-138, WS-139, WS-140

Drinking Water Chemistry WS Proficiency Study Schedule

2024 WS Drinking Water Chemistry PT Study Schedule
Study Number Study Opens Study Closes
WS-137 Jan. 8, 2024 Feb. 21, 2024
WS-138 April 3, 2024 May 17, 2024
WS-139 July 2, 2024 Aug. 15, 2024
WS-140 Oct. 15, 2024 Nov. 28, 2024

Analyte

Sodium 12 – 50 mg/L
Magnesium 2.0 – 20 mg/L
Calcium 30 – 90 mg/L
Total Hardness 83 – 307 mg/L
Calcium Hardness 75 – 225 mg/L