Inorganics - Soil PT,  Proficiency Testing,  Soil PTs

Hexavalent Chromium #SPEI-003

A 40 gram sample applicable to all Cr(VI) Methods. Contains Hexavalent Chromium within the NELAC range. read more

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

Order online today or call our team at +1.800.274.5487.
Catalog Number:
SPEI-003
Choose Study

SM-140, SM-141, SM-142, SM-143

Soil Proficiency Test Schedule

2024 SM Soil PT Study Schedule
Study Number Study Opens Study Closes
SM-140 Feb. 6, 2024 March 21, 2024
SM-141 March 26, 2024 May 9, 2024
SM-142 Aug. 20, 2024 Oct. 3, 2024
SM-143 Oct. 21, 2024 Dec. 4, 2024

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