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:: PT Information

PT Instructions
Choose a Study and Catalog below to download ERA’s current proficiency testing study instructions.
Study Catalog

NELAC Fields of Proficiency Testing Tables
The NELAC FoPT tables contain the concentration ranges, acceptance limits and PTRLs for all analytes included in the NELAC PT program. If you have any questions about these tables or any other aspect of NELAC proficiency testing, please call ERA at 1-800-372-0122.
DW-Accreditation (WS)
DW-Experimental (WS)
DWRAD-Accreditation (WS RadChem)
NPW-Accreditation (WP)
NPW-Experimental (WP)
SCM-Accreditation (Soil)
SCM-Experimental (Soil)

 6000 W. 54th Ave., Arvada, CO 80002 | Phone 800-372-0122 | Fax 303-421-0159 | info@eraqc.com