Grand Rapids Metrology is considered critical infrastructure and remains open. Check out our COVID-19 Return to Work Plan.

Learn More

nist

  • What Does Legal-For-Trade Mean?

    December 17, 2018

    Legal-for-Trade scales are intended for commercial use applications. They are used when a product is sold by weight. Listed below are some examples where a Legal-for-Trade scale may be needed for commercial weighing: Determination of mass for commercial transactions Determination of mass for the calculation of a toll, tariff, tax, bonus, penalty, remuneration, indemnity or […]

  • Micrometer Calibration

    October 5, 2018

    Micrometers are used to measure thickness, diameters, and depth of slots with small distances. The rotations of the screw and thread forms are read from a scale and determine the accuracy. A micrometer is composed of a frame, anvil, barrel, lock nut, screw, spindle, thimble, and ratchet top. The frame is the thick C-shaped body […]

  • How to Properly Store and Handle Test Weights

    October 3, 2018

    Test weights are used to perform calibrations. It is very important to maintain their accuracy, and to do so there needs to be proper handling and storage of the test weights. If their accuracy is compromised, then calibrations will be off and product will be out of spec.   Class 1-7 test weights are held […]

  • [Guide] Visual Scope of Services

    [Guide] Visual Scope of Services

    October 2, 2017

    With the largest scope of capabilities in the state of Michigan, Grand Rapids Metrology is a “one-stop shop” for calibration services. This document is a visual guide to all scale and metrology equipment Grand Rapids Metrology is NIST and A2LA accredited to service. Click to view our Visual Scope of Services. Contact our experts to more information […]

  • The Kilogram will be Redefined in 2018: Here’s What You Need to Know

    The Kilogram will be Redefined in 2018: Here’s What You Need to Know

    August 2, 2017

    THIS IS MASSIVE “It’s not obvious that it’s a big deal, but it’s a big deal,” Chief of Quantum Measurement at the National Institute of Standards and Technology (NIST), Jon Pratt, said. His comment regarding a platinum and iridium cylinder that sits under lock and key in Serves, France. This cylinder is no ordinary mass, […]

  • The Difference Between A2LA and NIST

    The Difference Between A2LA and NIST

    August 17, 2016

    As you know, Grand Rapids Metrology is A2LA accredited to ISO 17025 standards in numerous measurement calibrations such as temperature, humidity, mechanical metrology, dimensional metrology, and much more. In previous blog posts, we have discussed the basics of A2LA and why it is so important to us and to our customers. Likewise, we have discussed […]