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Physical Measurement Laboratory

Office of Weights and Measures

OWM Staff and Technical Experts Directory

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Federal Staff | Associates & Interns | Organization Chart

NIST OWM is made up of more than 30 experts that are weights and measures coordinators, physical scientists and engineers, national and international standards experts, training and administrative professionals, and legal, laboratory and scientific metrologists.

Technical Experts Directory

Administration | Publications | Training | Metric (SI) | Laboratory Metrology | International Legal Metrology | Laws and Regulations | Measuring Systems | Weighing Systems | Small Volume Provers |  Other Measuring Devices |   NCWM Committees | NCWM NTEP Sectors
 

 Type of Information

Contact

           Phone          

Email

Weights and Measures
Katrice Lippa, Chief   1-301-975-3116

katrice.lippa [at] nist.gov (katrice[dot]lippa[at]nist[dot]gov)
General Inquiries     owm [at] nist.gov (owm[at]nist[dot]gov)

OWM Administration
Office Manager Nicole Moore 1-301-975-4004 barbara.cohn [at] nist.gov (nicole[dot]moore[at]nist[dot]gov)
Legal Metrology Standards Coordinator Vacant    

Training Coordinator

 Yvonne Branden 1-301-975-3272 yvonne.branden [at] nist.gov (yvonne[dot]branden[at]nist[dot]gov)
OWM Web Administrator Yvonne Branden 1-301-975-3272 yvonne.branden [at] nist.gov (yvonne[dot]branden[at]nist[dot]gov)
OWM Contacts System Administrator Yvonne Branden 1-301-975-3272 yvonne.branden [at] nist.gov (yvonne[dot]branden[at]nist[dot]gov)
AV Productions Coordinator Vacant  
 
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NIST Publications
NIST Handbook 44, Specifications, Tolerances and Other Technical Requirements for Weighing and Measuring Devices Juana Williams 1-301-975-3989 juana.williams [at] nist.gov (juana[dot]williams[at]nist[dot]gov)
Loren Minnich 1-202-430-0435 loren.minnich [at] nist.gov (loren[dot]minnich[at]nist[dot]gov)
Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)

NIST Handbook 130, Uniform Laws and Regulations in the Areas of Legal Metrology and Fuel Quality

Packaging and labeling, Method of sale, Unit pricing, Fuels and Automotive Lubricants Regulation, and Price verification

 David Sefcik 1-301-975-4868 david.sefcik [at] nist.gov (david[dot]sefcik[at]nist[dot]gov)  
John McGuire 1-202-981-1750 john.mcguire [at] nist.gov (john[dot]mcguire[at]nist[dot]gov)

NIST Handbook 133, Checking the Net Contents of Packaged Goods

Packaged commodities, Weight, Volume, Count, and Thickness.

 John McGuire 1-202-981-1750 john.mcguire [at] nist.gov (john[dot]mcguire[at]nist[dot]gov)
David Sefcik 1-301-975-4868 david.sefcik [at] nist.gov (david[dot]sefcik[at]nist[dot]gov)
NIST Handbook 105 Series, Specifications & Tolerances for Field Standards Micheal Hicks 1-301-975-4615 micheal.hicks [at] nist.gov (micheal[dot]hicks[at]nist[dot]gov)
NIST Handbook 143: State Weights and Measures Laboratories Program Handbook Micheal Hicks 1-301-975-4615

micheal.hicks [at] nist.gov (micheal[dot]hicks[at]nist[dot]gov)
NIST SP 811: Guide for the Use of International System of Units (SI) Elizabeth Benham 1-301-975-3690 elizabeth.benham [at] nist.gov (elizabeth[dot]benham[at]nist[dot]gov)
NIST SP 330: The International System of Units (SI) Elizabeth Benham 1-301-975-3690

elizabeth.benham [at] nist.gov (elizabeth[dot]benham[at]nist[dot]gov)

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OWM Training
General Inquiries     owmtrain [at] nist.gov (owm[at]nist[dot]gov)
Laboratory Metrology Isabel Chavez Baucom 1-301-975-2128 isabel.chavez.baucom [at] nist.gov (isabel[dot]chavez[dot]baucom[at]nist[dot]gov)
Laws & Regulations, Prepackaged Commodities, Price Verification, and Package  Labeling David Sefcik 1-301-975-4868 david.sefcik [at] nist.gov (david[dot]sefcik[at]nist[dot]gov)
John McGuire 1-202-981-1750 john.mcguire [at] nist.gov (john[dot]mcguire[at]nist[dot]gov)
Metric System (SI) Training and Education Outreach Elizabeth Benham 1-301-975-3690 elizabeth.benham [at] nist.gov (elizabeth[dot]benham[at]nist[dot]gov)
Weighing, Measuring, and Other Devices Training Tina Butcher 1-301-975-2196

tina.butcher [at] nist.gov (tina[dot]butcher[at]nist[dot]gov)
Loren Minnich 1-202-430-0435

loren.minnich [at] nist.gov (loren[dot]minnich[at]nist[dot]gov)

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Metric (SI)
Metric System (SI) Information Elizabeth Benham 1-301-975-3690 elizabeth.benham [at] nist.gov (elizabeth[dot]benham[at]nist[dot]gov)
Federal Agency Metric Progress Reports Elizabeth Benham 1-301-975-3690 elizabeth.benham [at] nist.gov (elizabeth[dot]benham[at]nist[dot]gov)
Unit Conversion Elizabeth Benham 1-301-975-3690 elizabeth.benham [at] nist.gov (elizabeth[dot]benham[at]nist[dot]gov)
U.S. Metrication Elizabeth Benham 1-301-975-3690

elizabeth.benham [at] nist.gov (elizabeth[dot]benham[at]nist[dot]gov)

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Laboratory Metrology
Laboratory Technical Assistance - General Micheal Hicks 1-301-975-4615 micheal.hicks [at] nist.gov (micheal[dot]hicks[at]nist[dot]gov)
Isabel Chavez Baucom 1-301-975-2128 isabel.chavez.baucom [at] nist.gov (isabel[dot]chavez[dot]baucom[at]nist[dot]gov)
Elizabeth Koncki 1-301-975-4859 elizabeth.koncki [at] nist.gov (elizabeth[dot]koncki[at]nist[dot]gov)
Calibration Procedures Micheal Hicks 1-301-975-4615 micheal.hicks [at] nist.gov (micheal[dot]hicks[at]nist[dot]gov)
Measurement Traceability Micheal Hicks 1-301-975-4615 micheal.hicks [at] nist.gov (micheal[dot]hicks[at]nist[dot]gov)
Proficiency Testing Micheal Hicks 1-301-975-4615 micheal.hicks [at] nist.gov (micheal[dot]hicks[at]nist[dot]gov)
Quality Management Systems Isabel Chavez Baucom 1-301-975-2128 isabel.chavez.baucom [at] nist.gov (isabel[dot]chavez[dot]baucom[at]nist[dot]gov)
State Lab Program and Recognition Micheal Hicks 1-301-975-4615 micheal.hicks [at] nist.gov (micheal[dot]hicks[at]nist[dot]gov)
Isabel Chavez Baucom 1-301-975-2128 isabel.chavez.baucom [at] nist.gov (isabel[dot]chavez[dot]baucom[at]nist[dot]gov)
Elizabeth Koncki 1-301-975-4859 elizabeth.koncki [at] nist.gov (elizabeth[dot]koncki[at]nist[dot]gov)
Uncertainties Micheal Hicks 1-301-975-4615

micheal.hicks [at] nist.gov (micheal[dot]hicks[at]nist[dot]gov)

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International Legal Metrology
International Legal Metrology (OIML) Chuck Ehrlich 1-301-975-4834 charles.ehrlich [at] nist.gov (charles[dot]ehrlich[at]nist[dot]gov)
Ralph Richter 1-301-975-3997 ralph.richter [at] nist.gov (ralph[dot]richter[at]nist[dot]gov)
Jan Konijnenburg   jan.konijnenburg [at] nist.gov (jan[dot]konijnenburg[at]nist[dot]gov)
Katya Delak 1-301-975-2520

katya.delak [at] nist.gov (katya[dot]delak[at]nist[dot]gov)

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Laws and Regulations
OIML Packaging and Labeling (R79 & R87) David Sefcik 1-301-975-4868 david.sefcik [at] nist.gov (david[dot]sefcik[at]nist[dot]gov)
John McGuire 1-202-981-1750

john.mcguire [at] nist.gov (john[dot]mcguire[at]nist[dot]gov)

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Measuring Systems
Metering Devices - General Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)
Juana Williams 1-301-975-3989 juana.williams [at] nist.gov (juana[dot]williams[at]nist[dot]gov)
Electric Vehicle Refueling Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)
Juana Williams 1-301-975-3989 juana.williams [at] nist.gov (juana[dot]williams[at]nist[dot]gov)
Electric Watthour Type Electric Meters Juana Williams 1-301-975-3989 juana.williams [at] nist.gov (juana[dot]williams[at]nist[dot]gov)
Cryogenic Measuring Devices Juana Williams 1-301-975-3989 juana.williams [at] nist.gov (juana[dot]williams[at]nist[dot]gov)
Retail Motor Fuel Dispensers (Gas Pumps) Loren Minnich 1-202-430-0435 loren.minnich [at] nist.gov (loren[dot]minnich[at]nist[dot]gov)
Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)
Juana Williams 1-301-975-3989 juana.williams [at] nist.gov (juana[dot]williams[at]nist[dot]gov)
Hydrogen & Compressed Gases Juana Williams 1-301-975-3989 juana.williams [at] nist.gov (juana[dot]williams[at]nist[dot]gov)
Liquefied Petroleum Gas (LPG) Meters John McGuire 1-202-981-1750 john.mcguire [at] nist.gov (john[dot]mcguire[at]nist[dot]gov)
Juana Williams 1-301-975-3989 juana.williams [at] nist.gov (juana[dot]williams[at]nist[dot]gov)
Loading-Rack Meters John McGuire 1-202-981-1750 john.mcguire [at] nist.gov (john[dot]mcguire[at]nist[dot]gov)
Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)
Juana Williams 1-301-975-3989 juana.williams [at] nist.gov (juana[dot]williams[at]nist[dot]gov)
Mass Flow Meters Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)
Jan Konijnenburg   jan.konijnenburg [at] nist.gov (jan[dot]konijnenburg[at]nist[dot]gov)
Field Reference Meters Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)
Jan Konijnenburg  

jan.konijnenburg [at] nist.gov (jan[dot]konijnenburg[at]nist[dot]gov)

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Weighing Systems
Weighing Devices - General Jan Konijnenburg   jan.konijnenburg [at] nist.gov (jan[dot]konijnenburg[at]nist[dot]gov)
Loren Minnich 1-202-430-0435 loren.minnich [at] nist.gov (loren[dot]minnich[at]nist[dot]gov)
Automatic Weighing Systems & OIML R51 Jan Konijnenburg   jan.konijnenburg [at] nist.gov (jan[dot]konijnenburg[at]nist[dot]gov)
Loren Minnich 1-202-430-0435 loren.minnich [at] nist.gov (loren[dot]minnich[at]nist[dot]gov)
Belt-Conveyer Scales & OIML R50 Jan Konijnenburg   jan.konijnenburg [at] nist.gov (jan[dot]konijnenburg[at]nist[dot]gov)
Loren Minnich 1-202-430-0435 loren.minnich [at] nist.gov (loren[dot]minnich[at]nist[dot]gov)
Hopper Scales, Auto Bulk Weighing Loren Minnich 1-202-430-0435 loren.minnich [at] nist.gov (loren[dot]minnich[at]nist[dot]gov)
Vehicle In-Motion (VIM) Weighing & OIML R134 Jan Konijnenburg   jan.konijnenburg [at] nist.gov (jan[dot]konijnenburg[at]nist[dot]gov)
Loren Minnich 1-202-430-0435 loren.minnich [at] nist.gov (loren[dot]minnich[at]nist[dot]gov)
Non-Automatic Weighing Instruments (NAWIs) & OIML R76 Jan Konijnenburg   jan.konijnenburg [at] nist.gov (jan[dot]konijnenburg[at]nist[dot]gov)
Railway Track Scales & OIML R106 Jan Konijnenburg   jan.konijnenburg [at] nist.gov (jan[dot]konijnenburg[at]nist[dot]gov)
Uncertainties - Balances and Scales Micheal Hicks 1-301-975-4615

micheal.hicks [at] nist.gov (micheal[dot]hicks[at]nist[dot]gov)

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Small Volume Provers
General Field Use Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)
Calibration, Witnessing Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)
Vehicle-Tank Meters Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)
Juana Williams 1-301-975-3989

juana.williams [at] nist.gov (juana[dot]williams[at]nist[dot]gov)

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Other Measuring Devices
Grain Moisture & OIML R59; 
Protein Analyzers & OIML R146		 Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)
Livestock Carcass Measuring Systems Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)
Multiple Dimension Measuring Devices (MDMD) Loren Minnich 1-202-430-0435 loren.minnich [at] nist.gov (loren[dot]minnich[at]nist[dot]gov)
Taximeters, Transportation Network Measuring Systems, and Odometers & OIML R21 Juana Williams 1-301-975-3989

juana.williams [at] nist.gov (juana[dot]williams[at]nist[dot]gov)

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National Conference on Weights & Measures (NCWM) Committees*
Executive Secretary Katrice Lippa 1-301-975-3116 katrice.lippa [at] nist.gov (katrice[dot]lippa[at]nist[dot]gov)
Laws & Regulations Committee John McGuire 1-202-981-1750 john.mcguire [at] nist.gov (john[dot]mcguire[at]nist[dot]gov)
David Sefcik 1-301-975-4868 lisa.warfield [at] nist.gov (david[dot]sefcik[at]nist[dot]gov)
Professional Development Committee Tina Butcher 1-301-975-2196 tina.butcher [at] nist.gov (tina[dot]butcher[at]nist[dot]gov)
Specifications & Tolerances Committee
Loren Minnich 1-202-430-0435

loren.minnich [at] nist.gov (loren[dot]minnich[at]nist[dot]gov)
Juana Williams 1-301-975-3989

juana.williams [at] nist.gov (juana[dot]williams[at]nist[dot]gov)

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NCWM National Type Evaluation Program (NTEP) Sectors
NTEP Software Sector Jan Konijnenburg   jan.konijnenburg [at] nist.gov (jan[dot]konijnenburg[at]nist[dot]gov)
NTEP Grain Analyzers Sector Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)
NTEP Measuring Sector Diane Lee 1-301-975-4405 diane.lee [at] nist.gov (diane[dot]lee[at]nist[dot]gov)
NTEP Belt Conveyer/Weighing Sector Jan Konijnenburg   jan.konijnenburg [at] nist.gov (jan[dot]konijnenburg[at]nist[dot]gov)
NTEP Multiple Weighing Dimension Measuring Device Loren Minnich 1-202-430-0435 loren.minnich [at] nist.gov (loren[dot]minnich[at]nist[dot]gov)
NTEP EVSE Workgroup Juana Williams 1-301-975-3989 juana.williams [at] nist.gov (juana[dot]williams[at]nist[dot]gov)

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Metrology, Metric and Weights and measures

Contacts

Created March 10, 2023, Updated January 12, 2024