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Standards

Calibration services

News and Updates

worker wearing hearing protection

Exactly how loud is that jackhammer?

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

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

HIP engines

Hyperspectral Image Projector (HIP)

Detecting climate data with remote sensing instruments, providing state-of-the-art surveillance imagery for security and defense, or getting the most out of

Field Parameter Metrology

Consider the consequences if nearby electronics could interfere with a jet's instruments or cause an automobile to stall. The Field Parameter Metrology Program

Thermal Noise Metrology

This project develops methods for very accurate measurements of thermal noise and provides support for such measurements in the communications and electronics

Publications

Comparison Demonstrates Factor of Three Improvement in Gas Flow Measurements

Author(s)
John D. Wright, Gina Kline, Kevin John, Brian Novitsky, Jason Bellavance, Kevin SHufelt, Bradley Nease, Miles Owen, Joseph Allen, Casey Rombouts, William Gause, John Cuccio
A comparison of seven gas flow calibration laboratories piloted by NIST used four laminar flow meters as the transfer standards for nine nitrogen gas flows

Automated Piston Gauge Calibration System.

Author(s)
Julia Scherschligt, Yuanchao Yang, Katie M. Schlatter, Robert G. Driver, Christina D. Cross, John S. Quintavalle
Piston gauges or pressure balances are important primary standards for the realization of the SI unit of pressure, the Pascal. The National Institute of

Tools and Instruments

Plot of Si photodiode typical responsivity in EUV

Si EUV Photodiode Transfer Standard

Silicon (Si) photodiodes are issued by NIST as transfer standard detectors throughout the extreme ultraviolet spectral region (5 nm to 254 nm). Each device is

Aperture area measurement facility

NIST has established an absolute aperture area measurement facility for circular and near-circular apertures use in radiometric instruments. The facility

Awards