Request a Quote Contact Us

Tools & Resources

Accreditations Customer Portal Approvals Case Studies

» Watch Our VIDEOS to learn more!

Quality & Convenience

  • A2LA and NADCAP accreditations
  • ISO 17025 certification
  • Same day, next-day, 2nd-day Rush Services
  • Secure Portal to track orders and get certifications
  • Fast Certified Reports sent by email

Customer Testimonials

“You guys are a great lab.  Always do a good job for us and we really appreciate it.  We can do most of our own chemistry testing but when we can’t, I always send it to you with no worries. I’ve also had a few inquiries from other companies lately and I’ve given them your info as well.”

Melissa Kilgore,
Lab Technician


Get the LTI Newsletter

Sign Up Now

Connect with us!

LTI on Facebook LTI on Twitter LTI on LinkedIn LTI on YouTube LTI on Google+

We Accept:

VisaMasterCardAmerican Express

Determining the Frequency of Calibration

Calibration Gage BlocksThe calibration of measuring tools, instruments and masters is a comparison of a measurement reading from the item being calibrated with a known value from a reference instrument or standard. Variations between the reading and the known value determine the performance limitations of the tool, instrument or master.

Inception of Calibration

It is often a good policy to calibrate measuring instruments prior to the first use. This will establish a measurement history from the beginning for future reference and comparison. Tracking the history on the instruments to make sure that they have been within the specifications will help in making decisions about calibration frequency or intervals.

Frequency of Calibration

Shorter intervals between calibrations may reduce the risk of questionable measurements. When determining the frequency of calibration, consider factors that may affect measurement accuracy:

  • How often the instrument is used
  • Environmental conditions (e.g. humidity, temperature, vibration) where the instrument is stored and used
  • The required uncertainty in measurement
  • Requirements of your company’s quality program