Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Projects/Programs

Displaying 26 - 50 of 86

Disaster and Failure Studies & Disaster Metrology Studies

Completed
Objective - To provide leadership, coordination, and management for (1) the conduct of disaster and failure studies, including the development and maintenance of an archival data repository, (2) promoting the implementation of recommendations from disaster and failure studies, (3) carrying out the

Ecogenotoxicity Measurements of Nanoparticles

Completed
Intended Impact Understanding the potential environmental fate of NPs has direct implications to the US economy, as potential environmental and human health impacts of NPs is one of the main factors slowing the commercialization of this technology. Reducing the uncertainty regarding the

Electromagnetic Field Strength Metrology

Ongoing
NIST calibrates electrically-small field probes from 10 megahertz – 40 gigahertz. These measurements are done in facilities that are periodically compared against other National Metrology Institutes in conjunction with the Bureau International des Poids et Mesures (BIPM). This assures international

Environmental Metrology Measurement Assistant (EMMA)

Ongoing
Quantification of environmental metrology data can be complex at the level on which NIST operates. Projects often include dozens of samples from multiple matrices and can target well over 300 analytes of vastly different chemical properties, each of which must be individually assessed. Quality

Far infrared remote sensing

Ongoing
The Total Solar Irradiance and the outgoing Earth radiance are long term measurements that have been monitored from space for over 40 years. Microfabricated, absolutely calibrated bolometers with vertically-aligned carbon nanotubes that are developed by this project provide a more accurate and more

Fiber Sources and Applications Background Information

Ongoing
NIST has been a world leader in lasers since the technology's development in the early 1960s, a tradition continued when NIST scientist John L. Hall shared the 2005 Nobel Prize in physics for his part in the invention of the optical frequency comb. The output of a comb is a brief broadband pulse

Flammability Metrics for New Low-GWP Refrigerants

Ongoing
Objective: To develop the capability to measure and predict the burning velocity of mixtures of low-Global Warming Potential (GWP) refrigerants to allow the ranking of the mixtures in terms of their flammability, to assist in the selection and implementation of the best replacements for high-GWP

Fluid Phase Nuclear Magnetic Resonance (NMR) Spectroscopy

Ongoing
In-situ vapor-liquid equilibrium (VLE). We are applying vapor-phase NMR to measure VLE in-situ . We are currently applying this methodology to industrially important systems such as refrigerants and natural gas. The most widely used refrigerants have high global warming potential. Drop-in

FOREST

Ongoing
The goals of the research are to: Provide a testbed (Forested Optical Reference for Evaluating Sensor Technology, FOREST) for ecophysiological and optical sensors with well-established reference points Quantify ecosystem phenomenology that will allow for better estimates of productivity Link leaf

Fundamental Guided Wave Metrology

Ongoing
The science of microwave measurements is expanding in many different directions. There is a constant push to use higher frequencies. Signals are becoming much more complex and include modulation effects, multiport/differential signals, complex waveforms, and other unusual signal schemes. On-wafer

Fundamental Interaction Mechanisms of Engineered Nanomaterials with DNA

Completed
Intended impact Nanotechnology research has resulted in the rapid creation of engineered nanomaterials with many foreseeable applications in medical imaging/diagnosis and in drug delivery. However, there is a notable scarcity of both acute and chronic human toxicity data for these new materials

GReenhouse Gas And Air Pollutants Emissions System (GRA2PES)

Ongoing
The GReenhouse gas And Air Pollutants Emissions System (GRA2PES) uses publicly accessible GHG emissions activity data across multiple economic sectors, including energy production, manufacturing, transportation, agriculture, and land use, among others. The initiative involves the development of

HML Organic Chemical Metrology Program Areas

Ongoing
The organic analytical facility, located on the second floor of the Hollings Marine Laboratory, consists of two laboratories with a combined area of approximately 215 m2. These two laboratories provide the space and instrumentation to achieve two main functions for NIST: (1) the determination of

The Indianapolis (INFLUX) Urban Test Bed

Ongoing
Observation Network Various types of atmospheric GHG observations have been deployed as part of the INFLUX project: Tower-based in-situ, continuous measurements of CO 2, CH 4, and CO Flask sampling of 14CO 2 and other trace gases (currently at two towers) Periodic aircraft sampling of greenhouse

The Los Angeles Megacity Carbon Project

Ongoing
Observation Network Tower and rooftop-based in-situ measurements of carbon dioxide (CO 2) and methane (CH 4) are the backbone of the LA Megacity test bed. This surface-based component of the LA observing system includes a network of Greenhouse Gas (GHG) monitoring stations that is intended to

Low-Cost Sensor Platform

Ongoing
This platform uses commercially available sensors and microcontrollers, making them a fraction of the cost of traditional GHG measurement systems. Though these sensors are less accurate than traditional measurement systems, NIST hopes to reduce sensor uncertainty to the 1 ppm level with frequent

Lunar Spectral Irradiance (LUSI)

Ongoing
Earth observing satellite sensors were once the exclusive domain of large satellite platforms used by government agencies for the purpose of national security, defense, weather prediction and disaster mitigation. These satellites typically carry onboard radiometric calibrators that along with pre

Measurements and Standards for Contaminants in Environmental Samples

Ongoing
In 1971 NIST issued the first natural environmental matrix SRM for contaminants, SRM 1571 Orchard Leaves, with certified concentrations for trace elements. The development of SRM 1571 Orchard Leaves formalized the approach of combining results from "two or more independent and reliable analytical

Measurements and Standards for Organic Contaminants in Wildlife Matrices

Ongoing
Monitoring contaminant exposure in wildlife is crucial to assess the impact of environmental contaminants on animal health. The development of methods to screen samples for the presence of new compounds (non-targeted research) and to measure the accurate concentration of known, targeted compounds in