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.
Marc J. Assael, I. Bogdanou, Sofia K. Mylona, Marcia L. Huber, Richard A. Perkins, Velisa Vesovic
This paper contains new, representative reference equations for the thermal conductivity of n-heptane. The equations are based in part upon a body of...
In this report we discuss different types of ground-truth systems used for evaluation of object recognition and tracking systems in industrial manufacturing...
William F. Young, Catherine A. Remley, Galen H. Koepke, Dennis G. Camell, Jacob L. Healy
We analyze data from NIST field tests in which radio-propagation channel path loss values were measured at approximately the same physical locations where the...
From September 2011 to September 2012, the NIST Law Enforcement Standards Office (OLES), sponsored by the U.S. Department of Homeland Security Science and...
Richard D. Peacock, Paul A. Reneke, Glenn P. Forney
CFAST is a two-zone fire model capable of predicting the environment in a multi-compartment structure subjected to a fire. It calculates the time evolving...
Richard D. Peacock, Walter W. Jones, Paul A. Reneke
Abstract This supplement to the CFAST Technical Reference Guide provides details of the software development process for CFAST and accompanying validation for...
Concrete tile roofing assemblies (flat and profiled tile) as well as terracotta tile roofing assemblies (flat and profiled tile) commonly used in the USA...
Joseph J. Biernacki, Jeffrey W. Bullard, Constantiner Constantiner, Richard Meininger, Maria Juenger, Josephine H. Cheung, William Hansen, R. D. Hooton, Andreas Luttge, Jeffrey J. Thomas
Hydration of portland cement is the cornerstone of the process responsible for microstructure development in concrete and ultimately controls the kinetics of...
Michelle P. Steves, Brian C. Stanton, Mary F. Theofanos, Dana E. Chisnell, Hannah Wald
The Department of Homeland Securitys (DHS) United States Visitor and Immigrant Status Indicator Technology (US-VISIT) program is a biometrically-enhanced...
This ITL Bulletin describes the Cybersecurity Framework that NIST is developing to reduce cyber risks to our nation's critical infrastructure and announces the...
Application profiling tools are the instruments used to measure software performance at the function and application levels. Without careful configuration of...
Two national workshops were convened in 2011 to assist NIST with identifying critical gaps and needs in tools and metrics for assessing the resilience of the...
The National Institute of Standards and Technology (NIST) recently established a Vitamin D Metabolites Quality Assurance Program (VitDQAP) in collaboration with...
The National Institute of Standards and Technology (NIST) has established a Vitamin D Metabolites Quality Assurance Program (VitDQAP) in collaboration with the...
Richard D. Peacock, Glenn P. Forney, Paul A. Reneke
CFAST is a two-zone fire model capable of predicting the environment in a multi-compartment structure subjected to a fire. It calculates the time evolving...
Two gross count and one radionuclide identification backpack-type radiation detectors (BRDs) were used to validate radiological test requirements listed in the...
Leticia S. Pibida, Craig Heimbach, Bruce R. Norman, Alan Keith Thompson, Maynard S. Dewey
Initial neutron measurements and calculations were performed to investigate the response of handheld radionuclide identifiers (RIDs) to neutron sources with...
Steven J. Emmerich, Andrew K. Persily, Wang Liangzhu
The U.S. Consumer Product Safety Commission (CPSC) is concerned about the hazard of acute residential carbon monoxide (CO) exposures from portable gasoline...
The National Institute of Standards and Technology coordinates the Micronutrients Measurement Quality Assurance Program (MMQAP) for laboratories that measure...
Alkali-silica reaction (ASR) is a concrete degradation phenomenon in which the alkalis that are typically found in concrete react with certain amorphous or...
Marc J. Assael, Sofia K. Mylona, Ch. A. Tsiglifisi, Marcia L. Huber, Richard A. Perkins
This paper contains new, representative reference equations for the thermal conductivity of n-hexane. The equations are based in part upon a body of...
Anthony D. Putorti Jr., Amy Mensch, Nelson P. Bryner, George C. Braga
Fire fighters are exposed to highly variable thermal environments including elevated temperatures, convective heat flux, and radiant heat flux, which can put a...