Sapphire Proficiency Testing

ISO/IEC 17043:2010 Compliant


We specialize in meeting the demands of the commercial calibration laboratory by offering easy accessibility to proficiency testing, quick turnaround times for reporting, and competitive pricing to meet all your proficiency testing requirements.  Our proficiency test service offers a variety of artifacts to meet your accreditation needs.  To view our test offerings please use the link above to our “TESTS AVAILABLE” page.


Welcome to Sapphire!

“Your affordable solution for proficiency testing”

2008-2014 Sapphire Proficiency Testing Inc., all rights reserved. 3593 Medina Road, #150 Medina, Ohio 44256-8182

330-328-4400 (Technical Inquiries), 612-308-2202 (Sales Inquiries)

We now provide Proficiency Test for Mass Flow Meters!