Calibration services

News and Updates

The Half of It: Argentinian Metrologist Builds NIST-Inspired ‘Half-Angle’ Measurement System

October 30, 2019

When Jorge Campbell, an engineer from Argentina’s National Institute of Industrial Technology (INTI), visited the National Institute of Standards and Technology

Brighter Future for LEDs: NIST Introduces New Lamp Calibration Lab

September 3, 2019

Question: How many measurement scientists does it take to screw in an LED lightbulb? Answer: For researchers at the National Institute of Standards and

Exactly how loud is that jackhammer?

August 17, 2018

When a jackhammer starts pounding outside your window at 7 o’clock on a Monday morning, you might find it annoying. For the worker who is running that

NIST Puts the Optical Microscope Under the Microscope to Achieve Atomic Accuracy

May 22, 2018

Over the last two decades, scientists have discovered that the optical microscope can be used to detect, track and image objects much smaller than their

Industry Impacts

A man in a hardhat standing on top of the million-pound weight stack with a person standing at the bottom.

Massive Forces for Heavy Industry

Measuring large forces, such as the thrust of a rocket engine or the deflection of an aircraft wing, requires well-calibrated force sensors. NIST’s unique

Projects and Programs

Calibration of Beta-Particle Sources and Instruments for Radiation Protection

A calibration service for protection-level beta-particle sources and instrumentation has been in place at NIST for several years.

Air-kerma Calibrations in Radiation Protection Level Cs-137 and Co-60 Gamma Ray Beams

The Dosimetry Group maintains and disseminates the national measurement standards for air-kerma (exposure) from 137Cs and 60Co gamma-ray beams and for absorbed

Technetium-99m Primary Standardization and International Comparison

Technetium-99m (99mTc) is used in two-thirds of all diagnostic nuclear medicine procedures in the United States.

Calibration of Force Transducers

NIST provides calibration services for force-measuring instruments by applying known forces, compression, tension or both, to the elastic transducer and

Publications

Advanced Temperature-Control Chamber for Resistance Standards

April 10, 2020

Author(s)

Shamith U. Payagala, Alireza R. Panna, Albert F. Rigosi, Dean G. Jarrett

Calibration services for resistance metrology have continued to advance their capabilities and establish new and improved methods for maintaining standard

Faster, More Accurate, Stack-Flow Measurements

February 25, 2020

Author(s)

Aaron N. Johnson, Iosif I. Shinder, Bernard J. Filla, Joey T. Boyd, Rodney A. Bryant, Michael R. Moldover, Thomaa D. Martz, Matthew Gentry

Exhaust flows from coal-fired electricity-generating-plants are determined by measuring the flue gas velocity at prescribed points in the stack cross section

National Voluntary Laboratory Accreditation Program (NVLAP) Calibration Laboratories

July 29, 2019

Author(s)

Barbara J. Belzer, Kari K. Harper, Titilayo O. Shodiya

NIST Handbook 150-2, 2019 edition, presents the technical requirements and guidance for the accreditation of laboratories under the National Voluntary

Progress Towards a Gas-Flow Standard using Microwave and Acoustic Resonances

July 16, 2019

Author(s)

Jodie G. Pope, Keith A. Gillis, Michael R. Moldover, Eric Harman, James Mehl

We describe our progress in the development of a novel gas flow standard using the acoustic and microwave resonances of a 1.85 m3, nearly-spherical, steel