An official website of the United States government
Here’s how you know
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.
As the U.S. National Metrology Institute (NMI), our objective is to standardize and improve hardness and coating thickness measurement both in the U.S. and
The National Institute of Standards and Technology (NIST) established a Health Assessment Measurements Quality Assurance Program (HAMQAP), in part as a
Recent innovative advances in the design and manufacture of isotope ratio mass spectrometers (IRMS) have revolutionized the study of natural and man-induced
To identify new biomarkers that may serve as disease indicators and to understand biologically relevant properties of the human gut microbiome, we need
Many polymeric fluids, including biotherapeutics and fuels, can have unusual physical behavior in solutions, and many applications require detailed knowledge of
The ability to deposit small amounts of material in a highly controllable and precise fashion is important for creating test materials for trace detection
Confidence in total or viable microbial cell counting methods is lacking, due in part to a dearth of relevant reference materials. NIST has developed a living
There is always a degree of uncertainty surrounding measurements of polymeric materials, especially complex mixtures with varying distributions in chemistry
We develop quantitative methods for the analysis of macromolecules having complex architectures and nanoparticles having organic functionalities. Our approaches
The lack of repeatable process outcomes from additive manufacturing (AM) has been broadly acknowledged as an impediment to widespread implementation. While most
The use of standards is considered a critical component in the assurance of analytical quality, allowing reliable measures of detection limits, accuracy, and
As part of a multi-year interagency agreement among the National Institute of Standards and Technology (NIST), the National Institutes of Health's Office of
For the past 40 years NIST has developed SRMs for the determination of inorganic and organic contaminants in environmental matrices such as sediments/soils
For the past 25 years NIST has developed a number of biological fluid and tissue Standard Reference Materials (SRMs) primarily for clinically important analytes
The NIST Metabolomics Quality Assurance and Quality Control Materials (MetQual) Program has been created to demonstrate and improve the comparability of
Reference materials (RMs) consisting of whole microbial cells characterized for total cell number and total DNA are needed to evaluate and compare cell counting
There is a growing need to establish quality assurance and measurement strategies to address microbial function and emergent activities related to interspecies
The Micronutrients Measurement Quality Assurance Program (MMQAP) was initiated in 1984 by the National Cancer Institute Division of Cancer Prevention and
The mission of the Micro and Nanoplastic (MNP) Metrology Project is to assist regulators in assessing the human health and environmental risks associated with
This project develops and applies metrologies and standards for characterizing microstructure and dynamics in advanced functional materials of technological
Our goal is to develop new methods to rapidly screen bulk carbon nanotubes for chemical purity and homogeneity. The different synthesis routes used to produce
The American Industry/Government Emissions Research (AIGER) Consortium is working to facilitate the automobile industry meeting more stringent 2003 Federal Tier
NIST provides data resources related to adsorption of both gases and liquids on solid adsorbents through the NIST Data Resources for Adsorption Science and
Flow cytometry is used to analyze individual cells to understand the proteins, nucleic acids and other biomolecules they have or produce, and to analyze groups