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Calibration Servicesfour day turnaround

Rice Lake’s two metrology labs bring you nationwide service, expanded calibration offerings and industry-leading metrology experts—all with a leading 4-day calibration turnaround.

If you need a custom solution, we manufacture custom calibration weight values and sizes. Our staff is ready to assist and answer your questions. Please call 800-472-6703 for assistance in quoting the correct service for your needs.

Our Metrology Services

Rice Lake offers three different certificates to accompany your weight calibration services. Depending on your application, you may be required to provide a certain level of certification. Always ensure you are requesting the correct certificate for your use. Rice Lake’s metrology staff can help guide your certificate decision, but ultimately, we request you provide the level of traceability and accuracy needed for your calibration services.

Available certificates and document include:


Our Metrology Labs

Rice Lake Metrology Lab

Our metrology lab in Rice Lake, Wisconsin has been providing quality mass calibration services to Rice Lake Weighing Systems customers for more than two decades with the weight and calibration industry’s only metrology lab with a four-day turnaround. The Rice Lake, Wisconsin lab is accredited by the National Voluntary Laboratory Accreditation Program (Calibration Lab Code 105001-0), an accreditation program by NIST providing unbiased third-party laboratory evaluation, as well as the American Association for Laboratory Accreditation (A2LA 4363.01). Our metrology lab staff has more than 200 years of combined experience and includes experts in the field of weight recalibration and certification, including the manufacture of custom weights in any size or value.

Concord Metrology Lab

Our Concord, California metrology lab (formerly Heusser Neweigh) is a state-of-the-art metrology lab committed to delivering the latest calibration methodology with the most precise calibrations. The lab’s professional metrologists frequently attend and participate in NIST training, conferences, seminars and other educational opportunities. Our Concord, California lab is also active in the NIST Western Regional Measurement Assurance Program (WRAP), the National Conference of Standards Laboratories International (NCSL International), and the American Society for Quality (ASQ). This lab is also accredited by the American Association for Laboratory Accreditation (A2LA 1823.01) and the National Voluntary Laboratory Accreditation Program (Calibration Lab Code 600169-0).


Title Download Email
EN ISO 13485:2016 Design, Manufacture, Distribution and Service of Precision Medical Scales Download Email
ISO 9001:2015 Certificate of Registration Download Email
ISO 9001:2015/AS9100D Certificate – Seattle, WA Location Download Email
ISO/IEC 17025:2017 A2LA Scope of Accreditation - Concord, CA Download Email
ISO/IEC 17025:2017 NVLAP Scope of Accreditation - Concord, CA Download Email
ISO/IEC 17025:2017 A2LA Scope of Accreditation - Rice Lake, WI Download Email
ISO/IEC 17025:2017 NVLAP Scope of Accreditation - Rice Lake, WI Download Email
Verified Conformity Assessment Program (VCAP) Certification Email


WEB SC How To Pack Your Weights In 5 Steps

How to Pack Your Weights in 5 Steps

It is important that your calibration weights arrive at our labs undamaged. To pack your weights safely, please follow our 5 steps.

Are All Calibrations The Same

Are All Calibrations The Same?

Routine scale calibration is a necessary and critical component of scale maintenance and dependability. The quality of the calibration weight used for scale calibration is just as important.

WEB SC Class F Weights

Class F Calibration Weights No Longer Sold for Legal Metrology Use Starting January 2020

Beginning January 1, 2020, Class F calibration weights will no longer be sold for legal metrology use. New weights for use as field standards placed into service for weights and measures use after this date must comply with all of the requirements of NIST Handbook 105-1 (2019).

Made In America Class

Calibrating the Made in America Class

Rice Lake proudly adorns Made in America on all of our calibration weights!

Mass Vs. Weight

What is the Difference Between Mass and Weight?

What is the difference between mass and weight? Although often used interchangeably, weight and mass are two distinctly different units of measure.

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