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[Prepared by TASC, Inc. for NIST] This report examines the evolution and economic significance of NISTs Data Encryption Standard (DES) Program. DES was
This Report of Test summarizes the results of calibrations of two heat flux gages performed in the Building and Fire Research Laboratory at the National
William M. Pitts, James R. Lawson, John R. Shields
This report of test describes a heat-flux gage calibration system that was developed at the National Bureau of Standards during the 1970s. It is based on a
One potential breakthrough technology that stands to revolutionize construction surveying and status monitoring is known as laser range imaging. The device used
The main objective is to provide technical support (literature review on water additives, fluid property and possibly droplet impact data) for the study of the
Exploratory research has indicated that the following chemical families are likely 10 contain chemicals possessing both a high degree of fire suppression
Erik L. Johnsson, George W. Mulholland, Gerald T. Fraser, A Zuban, I I. Leonov
There is a need for monitoring the concentration of potential halon replacement chemicals with millisecond response time [I]. One scenario of great concern to
D W. Stroup, Laurean A. DeLauter, Jack C. Lee, G Roadarmel
A series of fire tests were conducted to characterize the potential hazard from ignition of Scotch Pine Christmas trees. Heat release rate was measured as a
Anthony D. Putorti Jr., T D. Belsinger, W H. Twilley
In order to characterize the water spray from a standard orifice,pendent spray sprinkler, measurements were made using an optical array probe droplet analyzer
The National Institute of Standards and Technology has developed a convective heat flux calibration facility to allow evaluation of heat flux sensors. This
Heat flux measurement is not simple; care is required in selecting a suitable sensor for a given application. Surface substrate properties and the convective
David G. Holmberg, C A. Womeldorf, William L. Grosshandler
The National Institute of Standards nad Technology has developed a convective heat flux facility to allow calibration of heat flux sensors. The facility
This document describes an overview of the model for United States Geological Survey (USGS) recognition of private sector Certification Issuing Organizations
This document describes an overview of the model for United States Geological Survey (USGS) recognition of private sector Certification Issuing Organizations
This document describes an overview of the model for United States Geological Survey (USGS) recognition of private sector certification issuing organizations
This document describes an overview of the model for United States Geological Survey (USGS) recognition of private sector certification issuing organizations
The report presents basic features of the evaporator model, EVAP5M, and simulation results for an evaporator operating with R-22 and R-407C at non-uniform air
David G. Holmberg, Kenneth D. Steckler, C A. Womeldorf, William L. Grosshandler
The National Institute of Standards and Technology (NIST) presently conducts heat flux sensor calibrations using standard radiation methods. In practice
Valeri I. Babushok, Anthony P. Hamins, Wing Tsang, T Noto
The specific mechanisms by which fire suppressants influence flame properties have been determined on the basis of computer simulations. Attention is focussed
Valeri I. Babushok, Donald R. Burgess Jr., T Noto, Anthony P. Hamins, Wing Tsang, A W. Miziolek
Numerical simulations of the combustion of a number of fuels; (CH,, CH,OH, C2H,, GH, and C&J in air, in the presence and absence of fire suppressants, (CF,Br
Anthony D. Putorti Jr., T D. Belsinger, W H. Twilley
In order to characterize the water spray from a low pressure, high momentum water mist nozzle, measurements were made using an optical array probe droplet
Some of the proposed replacements for CF3Br, the fluorinated hydrocarbons, are required in higher concentrations to extinguish fires and contain more halogen
C A. Womeldorf, William L. Grosshandler, M Mitchell
This paper describes the selection of a simulant of CF3Br for the purpose of certification testing engine nacelles fire suppression systems. In order to
Thomas G. Cleary, Jiann C. Yang, William L. Grosshandler, Michelle King, C I. Boyer
As part of the U.S. Air Force, Army, Navy and FAA Halon Replacement Project at NIST, the pipe flow characteristics were investigated for three engine nacelle
Valeri I. Babushok, Donald R. Burgess Jr., Gregory T. Linteris, Wing Tsang, A W. Miziolek
We have completed an initial computational study related to acid gas formation for two of the leading near-term Halon substitutes, FE-13 (CF,H) and HFC-125 (C,F
This paper presents the first measurements of the burning rate of premixed flames inhibited by three fluorinated hydrocarbons whos chemistry is similar to
Jiann C. Yang, Thomas G. Cleary, William L. Grosshandler
As a continuation of the USAF/Navy/Amy/FAA sponsored halon replacement project, the discharge characteristics of the three selected akernative agents (CFJ, FC
The paper constitutes a brief report on the research done under highly dynamic conditions to find alternatives to halon 1301 for application to aircraft in
The mixing and evaporation behavior of releases of potential halonreplacements for fire suppression have been investigated as part of a USAFadministered Halon