About RTC
  • Certified Reference Materials
  • Quality Control Standards
  • Proficiency Testing Standards
  • Calibration Standards
  • Custom Standards
We provide proficiency testing for water supply, water pollution, Resource Conservation and Recovery Act, and Discharge Monitoring Report-Quality Assurance.
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Website will be closed Monday, July 14, 2014

Monday, July 07, 2014

Please note, our website will be temporarily unavailable beginning Friday, July 11 at midnight MST.  During this time, we will be transitioning to our new web site.  We will be back up and running July 15.  Make sure you have signed up for one of our webinars to demonstrate the new site.  To sign up for a webinar, please email Pat Brumfield at pat.brumfield@sial.com...