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Metrology

Weights and measures

News and Updates

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OWM Recognizes Contributions of Proficiency Testing Coordinators at RMAPs

January 3, 2024

The OWM Laboratory Metrology group operates an ISO 17043 compliant Proficiency Testing (PT) program that assesses the effectiveness of the metrology training...

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2024 National Price Verification Survey

January 3, 2024

NIST Office of Weights and Measures (OWM) is collaborating with the National Conference on Weights and Measures (NCWM), together with 28 state and 38 local...

What is the true meaning of a “scale division” (d) versus a “verification scale division” (e)

September 28, 2023

Introduction If you are a state weights and measures official, scale manufacturer, or any other stakeholder dealing with scales used for commercial transactions...

2023 NIST Internship Reflections

September 28, 2023

During the summer of 2023, the NIST Physical Measurement Laboratory’s ( PML) Office of Weights and Measures ( OWM) hosted four undergraduate students who were...

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...

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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...

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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...

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Weights and measures

News and Updates

OWM Recognizes Contributions of Proficiency Testing Coordinators at RMAPs

2024 National Price Verification Survey

What is the true meaning of a “scale division” (d) versus a “verification scale division” (e)

2023 NIST Internship Reflections

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

Metric Week 2023: Seven Days of SI Fun

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

NIST OWM’s Informal Learning Resources

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

NIST OWM Strategic Plan

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

Switzerland Hosts OIML Certification System Management Committee

NIST Metric Kitchen: Educational Website Launched

EVSE Fast Charging Network: Challenges for Calibration and Traceability

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

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

SI Prefix Progress

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

NIST Office of Weights and Measures Launches Studio 220

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

Quantity Versus Quality of Inspections – Taking Shortcuts

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

Regional Measurement Assurance Program (RMAP) Back on the Move

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

Over 20,000 Propane Cylinders Tested Nationwide!

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