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Metrology

Weights and measures

News and Updates

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NIST SP2200-03: An Evolving Regulatory Landscape for Commercial Electric Vehicle Fueling

September 28, 2023

As part of NIST OWM's Special Publication 2200 series on Legal Metrology, NIST SP 2200-03 An Evolving Regulatory Landscape for Commercial Electric Vehicle...

Metric Week 2023: Seven Days of SI Fun

September 20, 2023

National Metric Week (October 8 to 14, 2023) is an opportunity to underscore the usefulness of metric system measurements, formally known as the International...

New York State Annual Weights and Measures Association Meeting and Training School

June 30, 2023

NIST OWM had the opportunity and pleasure to attend the New York State Annual Weights and Measures Association and Training School the week of June 12-16, held...

Green tool box with Learning Tools lettered in white

NIST OWM’s Informal Learning Resources

June 30, 2023

A few months ago, NIST OWM reached out to state weights and measures directors for their input on OWM’s “informal learning resources.” Through a series of...

Man holding laptop with hexagonal shapes with images and Legal Metrology written in one

Our Digital Future in Legal Metrology: Lessons Learned from the International Conference of Weighing

June 30, 2023

On April 24-26, 2023 the European Weighing Industry Association ( CECIP) organized the first meeting of the International Conference of Weighing (ICW) in...

NIST OWM Strategic Plan

June 30, 2023

As the NIST OWM Chief, I am very pleased to announce the completion and launch of the OWM Strategic Plan (FY2023 – FY2027). OWM has a long-standing history in U...

Small Volume Provers (SVPs): Small-Scale Measurement Devices with a Big Impact

March 31, 2023

Over the past few years, the United States has imported (and exported) about 8.5 million barrels per day of petroleum [1]. Assuming that one barrel is worth $75...

Switzerland Hosts OIML Certification System Management Committee

March 31, 2023

Could your measuring instrument manufacturing company benefit by having a significantly improved acceptance rate for your products in global markets? If yes...

NIST Metric Kitchen: Educational Website Launched

March 31, 2023

The NIST Office of Weights and Measures (OWM) Metric Program invites you to see what’s cooking in the NIST Metric Kitchen, a new educational website that...

EVSE Fast Charging Network: Challenges for Calibration and Traceability

January 7, 2023

Updated: 03/31/23 Charging Your Electric Car: Ensuring Accuracy for EVSEs with Traceable Transfer Reference Meters Owners of electric vehicles are coming to...

New Year’s Eve 2023 Marked the Retirement of the U.S. Survey Foot

January 6, 2023

At the stroke of midnight on January 1, 2023, the U.S. survey foot was deemed obsolete and the international foot (i.e., 1 foot = 0.3048 meter exactly)...

NIST Office of Weights and Measures – National Voluntary Laboratory Accreditation Program Partnership: New Faces and New Opportunities

January 5, 2023

The NIST Office of Weights and Measures (OWM) has long coordinated the accreditation of the State legal metrology laboratories through the OWM Recognition...

SI Prefix Progress

January 4, 2023

In December 2022, the BIPM SI Brochure (9 th Edition, December 2022, V2.01) was published to include the four new International System of Units (SI) prefixes...

Catch the Wave, SURF 2023, NIST OWM Undergraduate Researchers

Catch the Wave - NIST SURF for Career Success: Announcing 2023 Office of Weights and Measures Undergraduate Research Opportunities

December 14, 2022

Undergraduate students…are you looking for an extraordinary opportunity to propel your professional development and career forward? Well, there’s nothing quite...

Cameras and equipment set up in the studio in front of a table

NIST Office of Weights and Measures Launches Studio 220

September 30, 2022

Lights, camera, action! The vision to expand training capabilities within the Office of Weights and Measures (OWM) IACET accredited Training Program has become...

Graphic image with scale in front and person typing on a laptop in the background. Text on image reads: NIST Office of Weights and Measures, NIST SP 2200 Legal Metrology Publication Series.

NIST Office of Weights and Measures Launches New SP 2200 Legal Metrology Publication Series

September 29, 2022

In partnership with the NIST research library, the Office of Weights and Measures (OWM) has launched a new NIST Special Publication Series, SP 2200: Legal...

Infographic comparing characteristics of a checker vs. an inspector

Quantity Versus Quality of Inspections – Taking Shortcuts

September 28, 2022

This article was originally published in March 2005 and has been revamped and re-published here. As weights and measures jurisdictions grapple with finding the...

In-Person Training for Mulch and Soil Testing at the WWMA Annual Meeting

September 27, 2022

Now that we are attending meetings in-person again, this presents an opportunity for OWM staff to provide some of our training directly to our stakeholders...

Group photo outside of MidMAP training attendees

Regional Measurement Assurance Program (RMAP) Back on the Move

September 26, 2022

The Laboratory Metrology Program is wrapping up this year’s Regional Measurement Assurance Program (RMAP) training for the State Weights and Measures Laboratory...

Investigating Coriolis Mass Flow Meters as Field Reference Meters – Compressed Natural Gas Applications

June 30, 2022

Commercial metering systems are ubiquitous in the commercial marketplace (to dispense liquified products, from gas and water to food products and agricultural...

Over 20,000 Propane Cylinders Tested Nationwide!

June 29, 2022

In the summer of 2021, the NIST Office of Weights and Measures (OWM) partnered with the National Conference on Weights and Measures (NCWM) and States to develop...

OWM Featured on CNN Podcast and by Stephen Colbert of The Late Show

June 28, 2022

CNN’s Margins of Error podcast recently published an episode titled “Why Americans Won’t Give an Inch on Metric”. Host Harry Enten “goes the extra ‘yard’ to...

Regional Measurement Assurance Program (RMAP) Returns to OWM’s In-Person Training

June 27, 2022

The NIST OWM’s Laboratory Metrology Program resumed in-person Regional Measurement Assurance Program (RMAP) training events after more than two years. Annual in...

Graphic image of a document with a pen laying on it, single flat color icon

2022 Annual OWM S&T and L&R Analysis Documents

June 24, 2022

The 2022 Annual OWM S&T Analysis and Executive Summary as well as the 2022 Annual OWM L&R Analysis and Executive Summary are now available on our OWM website...

Digital NIST Stakeholder Workshop

June 16, 2022

NIST is anticipating future trends in metrology with the Digital NIST project. This will modernize transmission methods for calibration certificates and SRM...

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