Metrology Services

Rice Lake’s two metrology labs bring you nationwide service, expanded calibration offerings and industry-leading metrology experts.


Rice Lake Weighing Systems’ mass calibration laboratories feature an industry-leading four-day turnaround with direct traceability to NIST. Our expert metrology staff stays up-to-date on the latest industry trends and requirements and are ready to assist and answer your questions. Both labs are accredited to ISO/IEC 17025:2005

4 day calibration turnaround

Our Metrology Labs

Rice Lake Metrology Lab

The Rice Lake 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 lab is accredited by the National Voluntary Laboratory Accreditation Program (NVLAP 105001-0), an accreditation program by NIST to provide unbiased third-party laboratory evaluation, as well as the American Association for Laboratory Accreditation (A2LA 4363.01). The Rice Lake 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 size and value.

Concord Metrology Lab

Rice Lake’s Concord 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. The Concord 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). The Concord metrology lab is accredited by the American Association for Laboratory Accreditation (A2LA 1823.01) and the National Voluntary Laboratory Accreditation Program (NVLAP 600169-0).

Our 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 include:

  • Certificate of Weight Calibration (Accredited)
  • Certificate of Weight Calibration (Non-accredited)
  • Statement of Accuracy (Not a Legal for Trade or traceable document)


How to Order Our Services

Virtually all of our weight re-calibration and certification services receive an industry-leading four-day 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. You may also submit the forms below.

Contact Information

Toll Free: 800-472-6703
Email: prodinfo@ricelake.com

How to Pack Your Weights

Virtually all Rice Lake calibration weight services in our Concord, California and Rice Lake, Wisconsin metrology labs offer an industry-leading four-day turnaround. It is important that your calibration weights arrive at our labs undamaged. To pack your weights safely, please follow the steps below:

  1. Secure Your Weights

    Single weights should be individually wrapped. Weight sets need to be secure within their case. Even accessories such as milligram covers need to be protected so they cannot move. All weights need to be secure in a container designed to withstand the shipping process. Please remember, clean room cases do not provide suitable protection for shipping and should not be used.
  2. Use Proper Packing Material

    Single weights should be packaged individually in a vial or pouch, or wrapped in acid-free, no-lint paper, then bubble wrap or foam. Weight set cases may also be wrapped in bubble wrap or foam. Do not use packing peanuts—they create static electricity.
  3. Pack Your P.O.

    Include a copy of your quote or purchase order, or a copy of the recalibration form with the preferred metrology lab (either California or Wisconsin) clearly indicated. This information will help us service your weights with the quickest turnaround time.
  4. Separate Heavy Weights

    Large weights, 20 pounds or 10 kilograms and heavier, should be packaged in individual boxes.
  5. Don’t Mix Your Weights

    Please do not package stainless steel weights with cast iron weights.
How to Pack Your Weights

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