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 Decade: 1960-1969
 Serial/Series Title: National Bureau of Standards Reports
 Collection: Technical Report Archive and Image Library
The 1958 He4 Scale of Temperatures: Part 1. Introduction, Part 2. Tables for the 1958 Temperature Scale
Report containing information regarding He4 vapor pressure measurement as of 1958, the recent history of the vapor pressure temperature scale, and a series of tables containing these measurements. digital.library.unt.edu/ark:/67531/metadc13148/
Abscissas and Weights for Guassian Quadrature For N=2 to 100, and N-125, 150, 175, 200
The abscissas and weights for Gaussian Quadrature of order N = 2 to 100,and N = 125, 150, 175, and 200 are given. The abscissas are given to twenty-four places and the error is estimated to be no more than 1 unit in the last place. The weights are given to twenty-three places and the error is estimated to be no more than 1 unit in the last place. digital.library.unt.edu/ark:/67531/metadc70465/
Acceleration Due to Gravity at the National Bureau of Standards
No Description digital.library.unt.edu/ark:/67531/metadc13155/
Acid-Base Behavior in Aprotic Organica Solvents
No Description digital.library.unt.edu/ark:/67531/metadc13152/
Amplitude-Probability Distributions for Atmospheric Radio Noise
No Description digital.library.unt.edu/ark:/67531/metadc13201/
Analysis of Coaxial Two-Terminal Conical Capacitor
No Description digital.library.unt.edu/ark:/67531/metadc13239/
Analysis of Electric Energy Usage in Air Force Houses Equipped with Air-to-Air Heat Pumps
No Description digital.library.unt.edu/ark:/67531/metadc13244/
Analytical Standards for Trace Elements in Petroleum Products
Report discussing a search conducted for stable, oil-soluble, organic compounds of metals (and other elements) for use in the spectrographic analysis of petroleum products. Compounds having suitable physical properties have been selected as standards. Methods are given for preparation of the compounds and for the spectrographic and chemical analysis of the chosen standards. Procedures are described for the preparation of stable solutions thereof in petroleum oils. digital.library.unt.edu/ark:/67531/metadc70443/
Annotated Bibliography on Soft X-ray Spectroscopy
Report presenting a bibliography of about 550 references of the soft X-ray literature since 1950 and through 1960. The emphasis is on the application of soft X-ray spectroscopy to the study of valence band electronic states in metals and alloys. Therefore, the spectral region of 25 to 800 angstroms involving ruled glass grating spectrometers is of principal interest. In addition to soft X-ray data, references on all pertinent aspects of the apparatus and experimental problems are included. Also listed separately are references of value in corroborating soft X-ray data with other results. Subject, author, X-ray band, material, and other indices are included. digital.library.unt.edu/ark:/67531/metadc70442/
Atomic Energy Levels in Crystals
Report discussing discrete energy levels observed within certain crystals which are due to perturbations of energy levels of the free ion by an electrostatic field arising from the crystal lattice. The analytic procedures for determining the field from the charge configuration are given, and the resulting fields are classified according to their symmetry. After a general survey of group-theoretical ideas, the applicable groups are analyzed in detail, and characters appropriate for both integral and half-integral angular momenta of the free ion are tabulated. Text includes tabulations, equations, and matrices using Wigner and Racah coefficients. digital.library.unt.edu/ark:/67531/metadc70427/
Automatic Indexing: A State-of-the-Art Report
Report presenting a state-of-the-art survey of automatic indexing systems and experiments. It was conducted by the Research Information Center and Advisory Service on Information Processing, Information Technology Division, Institute for Applied Technology, National Bureau of Standards. Consideration is first given to indexes compiled by or with the aid of machines, including citation indexes. Advantages, disadvantages, and possibilities for modification and improvement are discussed. Experiments in automatic assignment indexing are summarized. Related research efforts in such areas as automatic classification and categorization, computer use of thesauri, statistical association techniques, and linguistic data processing are described. A major question is that of evaluation, particularly in view of evidence of human inter-indexer inconsistency. It is concluded that indexes based on words extracted from text are practical for many purposes today. digital.library.unt.edu/ark:/67531/metadc70462/
Automatic Typographic-Quality Typesetting Techniques: A State-of-the-Art Review
No Description digital.library.unt.edu/ark:/67531/metadc13276/
The Band Spectrum of Carbon Monoxide
Compilation of carbon monoxide band positions, molecular constants, energy levels, potential energy curves, and other molecular properties derived from the spectrum. digital.library.unt.edu/ark:/67531/metadc100705/
Basic Magnetic Quantities and the Measurement of the Magnetic Properties of Materials
No Description digital.library.unt.edu/ark:/67531/metadc13240/
Bibliography and Index on Vacuum and Low Pressure Measurement
No Description digital.library.unt.edu/ark:/67531/metadc13229/
Bibliography and Index on Vacuum and Low Pressure Measurement, January 1960 to December 1965
No Description digital.library.unt.edu/ark:/67531/metadc13228/
Bibliography of Temperature Measurement: January 1953 to June 1960
Report presenting more than 500 references to the field of temperature measurement. These references were collected from two general sources: Scientific and technical literature and government reports. The period covered is from 1953 to June 1960, with some from earlier dates. References are divided into a number of categories based on the type of instrument used. Some references to calibration of instruments and to scientific theories upon which temperature measurement is based are also presented. digital.library.unt.edu/ark:/67531/metadc70435/
Bibliography of Temperature Measurement: July 1960 to December 1965
Report combining National Bureau of Standards Monograph 27 with the references given in Supplement 1 (May 13, 1963) and issued as a single publication to assist users of this material. References concern the field of temperature measurement. These references were collected from two general sources: Scientific and technical literature and government reports. References are divided into a number of categories based on the type of instrument used. Some references to calibration of instruments and to scientific theories upon which temperature measurement is based are also presented. digital.library.unt.edu/ark:/67531/metadc70434/
Bibliography on Atomic Transition Probabilities
Report presenting a bibliography on atomic transition probabilities. The papers are arranged according to elements and stages of ionization, and the method employed and class of transitions are indicated behind each reference. Only articles on discrete transitions, both permitted and forbidden, are listed. Also included is a supplementary list of papers dealing with transition probabilities from a general point of view, a table showing the availability of numerical material on the individual atoms and ions, and a table of conversion factors. digital.library.unt.edu/ark:/67531/metadc70441/
Bibliography on Molecular and Crystal Structure Models
Report that briefly describes many of the models of crystal and molecular structures which have appeared in the literature, and presents a bibliography of the publications, grouped according to model types, which describe the models in more detail. digital.library.unt.edu/ark:/67531/metadc70495/
Calibration of Line Standards of Length and Measuring Tapes at the National Bureau of Standards
No Description digital.library.unt.edu/ark:/67531/metadc13186/
Calibration of Liquid-in-Glass Thermometers
Report discussing important elements of thermometer design. Factors affecting the use of common types of liquid-in-glass thermometers are included together with tables of tolerances and reasonably attainable accuracies. The calculation of corrections for the temperature of the emergent stem is given in detail for various types of thermometers and conditions of use. digital.library.unt.edu/ark:/67531/metadc70461/
Calibration Procedures for Direct-Current Resistance Apparatus
No Description digital.library.unt.edu/ark:/67531/metadc13232/
Capacities of Stacks in Sanitary Drainage Systems for Buildings
No Description digital.library.unt.edu/ark:/67531/metadc13220/
Causes of Variation in Chemical Analyses and Physical Tests of Portland Cement
Report discussing variations in comparative tests of portland cements that could lead to the rejection of a material fully conforming to specification requirements, or the acceptance of a material with undesirable chemical or physical properties. Many of the causes for variation in chemical analyses and physical test results are listed in this discussion, and remedies for some of the more frequently encountered deficiencies in apparatus and methods are suggested. digital.library.unt.edu/ark:/67531/metadc70436/
Chemistry of Cement: Proceedings of the Fourth International Symposium, Washington 1960, Volume 2
No Description digital.library.unt.edu/ark:/67531/metadc13237/
Climatic Charts and Data of the Radio Refractive Index for the United States and the World
No Description digital.library.unt.edu/ark:/67531/metadc13200/
Colorimetry
No Description digital.library.unt.edu/ark:/67531/metadc13150/
Colors of Signal Lights: Their Selection, Definition, Measurement, Production, and Use
Report discussing the selection, specifications, and use of signal-light colors. It discusses the nature of the problem, and the mathematical representation, recognition, production, control, and use of such colors. The characteristics of different types of chromaticity boundaries and the purpose and effect of the requirement for similarity of chromaticity characteristics are given special consideration. The treatment is varied according to the intended use. The discussion of the control of colors and the section on the use of colors are nontechnical, whereas the section on the production of signal colors is designed for the colorimetrist who is faced with the problem of selecting limit filters or drafting a specification. digital.library.unt.edu/ark:/67531/metadc70455/
Compilation of the Melting Points of the Metal Oxides
Report compiling the melting points of 70 metal oxides published prior to January 1963. Both the original melting point and the equivalent value based on the International Practical Temperature Scale of 1948 are presented. Included in the survey is information on pertinent experimental details such as the method of temperature measurement, purity, furnace type, and environmental conditions. digital.library.unt.edu/ark:/67531/metadc70451/
A Complete Mode Sum for LF, VLF, ELF Terrestrial Radio Wave Fields
Report discussing the VLF, ELF propagation in the earth-ionosphere waveguide emphasizing the total field found by summing all modes which contribute appreciably. Solutions are given and calculations are made for a homogeneous isotropic ionosphere, a homogeneous ionosphere with a constant radial magnetic field imposed, and an ionosphere with a magnetic field of arbitrary dip angle. digital.library.unt.edu/ark:/67531/metadc70456/
Conductive Flooring for Hospital Operating Rooms
Report issued by the Bureau of Standards over studies on the importance of conductive flooring in hospitals. Types of conductive flooring are compared, and tested. The methods and results are presented, and discussed. This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc13156/
Corrected Optical Pyrometer Readings
Report presenting a table of corrected optical pyrometer readings which enables optical pyrometer users to convert observed temperature immediately to the true temperature, if the effective emissivity of the material being observed is known. The table gives observed temperatures from 1,000 to 3,000ºK in increments of 5 degrees, from 3,000 to 5,000ºK in increments of 10 degrees, from 5,000 to 10,000ºK in increments of 50 degrees, and from 10,000 to 39,900ºK in increments of 100 degrees. For these, true temperatures are tabulated for 49 emissivities ranging from 0.02 to 0.98 in increments of 0.02. digital.library.unt.edu/ark:/67531/metadc70438/
Corrosion of Steel Pilings in Soils
No Description digital.library.unt.edu/ark:/67531/metadc13246/
Creep and Drying Shrinkage of Lightweight and Normal-Weight Concretes
No Description digital.library.unt.edu/ark:/67531/metadc13260/
Curves of Input Impedance Change Due to Ground for Dipole Antennas
Report presenting graphs of the change in input impedance of electrically short dipole antennas in the presence of an isotropic and homogeneous ground which considers four types of antennas: horizontal and vertical, electric and magnetic dipoles. Curves of the change in both the input resistance and reactance are shown for a wide range of values of the frequency, antenna height above the ground, and electromagnetic ground constants. digital.library.unt.edu/ark:/67531/metadc70453/
Determination of Total X-Ray Beam Energy With a Calibrated Ionization Chamber
No Description digital.library.unt.edu/ark:/67531/metadc13241/
Development of High-Temperature Strain Gages
No Description digital.library.unt.edu/ark:/67531/metadc13218/
Effect of Exposure Site on Weather Resistance of Porcelain Enamels Exposed for Three Years
No Description digital.library.unt.edu/ark:/67531/metadc13236/
Effect of Mortar Properties on Strength of Masonry
Report issued by the National Bureau of Standards over studies conducted on the effects of mortar on the strength of masonry. Materials, methods, and results are presented and discussed. This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc13230/
Effects of Finite Lattice Heat Capacity on Spin Lattice Relaxation: Theory and Numerical Analysis
Report discussing the transient magnetic behavior of a paramagnetic substance, after an initial disturbance, considered theoretically for a variety of situations in which the lattice temperature rises as a result of energy flow from the magnetic (electron spin) system. Next, the opposite extreme is considered - that in which the resonant and remaining modes are totally uncoupled. Finally, there is a consideration of the case of spins coupled only to the resonant phonons, which in turn are coupled to a constant temperature bath, whether this be the helium or the remaining modes. digital.library.unt.edu/ark:/67531/metadc70395/
Effects of Thermal Shrinkage on Built-up Roofing
No Description digital.library.unt.edu/ark:/67531/metadc13270/
Electrical Parameters of Precision, Coaxial, Air-dielectric Transmission Lines
No Description digital.library.unt.edu/ark:/67531/metadc13275/
Electron Optical Studies of Low-Pressure Gases
No Description digital.library.unt.edu/ark:/67531/metadc13251/
An Engineering Method for Calculating Protection Afforded by Structures Against Fallout Radiation
No Description digital.library.unt.edu/ark:/67531/metadc13261/
An Experimental Study of Phase Variations in Line-of-Sight Microwave Transmissions
No Description digital.library.unt.edu/ark:/67531/metadc13225/
Experimental Transition Probabilities for Spectral Lines of Seventy Elements: Derived from the NBS Tables of Spectral-line Intensities
No Description digital.library.unt.edu/ark:/67531/metadc13245/
Fire Tests of Precast Cellular Concrete Floors and Roofs
No Description digital.library.unt.edu/ark:/67531/metadc13238/
Handbook of Mathematical Functions With Formulas, Graphs, and Mathematical Tables
No Description digital.library.unt.edu/ark:/67531/metadc40301/
Heat Treatment and Properties of Iron and Steel
No Description digital.library.unt.edu/ark:/67531/metadc13198/
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