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  Partner: UNT Libraries Government Documents Department
 Serial/Series Title: NBS monograph
 Collection: Technical Report Archive and Image Library
Specific Heats and Enthalpies of Technical Solids at Low Temperatures: A Compilation from the Literature

Specific Heats and Enthalpies of Technical Solids at Low Temperatures: A Compilation from the Literature

Date: October 3, 1960
Creator: Corruccini, Robert J. & Gniewek, John J.
Description: Report giving tables of the specific heat, cp, and the enthalpy of 28 metals, 3 alloys, 8 other inorganic substances, and 8 organic substances in the temperature range, 1º to 300º K.
Contributing Partner: UNT Libraries Government Documents Department
Amplitude-Probability Distributions for Atmospheric Radio Noise

Amplitude-Probability Distributions for Atmospheric Radio Noise

Date: November 4, 1960
Creator: Chrichlow, W. Q.; Spaulding, A. D.; Roubique, C. J. & Disney, R. T.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Climatic Charts and Data of the Radio Refractive Index for the United States and the World

Climatic Charts and Data of the Radio Refractive Index for the United States and the World

Date: November 25, 1960
Creator: Bean, B. R.; Horn, J. D. & Ozanich, A. M., Jr.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
A Spectrophotometric Atlas of the Spectrum of CH from 3000A to 5000A

A Spectrophotometric Atlas of the Spectrum of CH from 3000A to 5000A

Date: February 14, 1961
Creator: Bass, Arnold M. & Broida, H. P.
Description: Report of the near ultraviolet and visible emission spectrum of CH presented in the form of a spectrophotometric atlas. The spectrum was recorded photoelectrically from an acetylene-oxygen flame in the region 4900 to 3000 A by use of a high-resolution grating monochromator. Each of the lines in the CH spectrum is identified.
Contributing Partner: UNT Libraries Government Documents Department
Atomic Energy Levels in Crystals

Atomic Energy Levels in Crystals

Date: February 24, 1961
Creator: Prather, John L.
Description: 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.
Contributing Partner: UNT Libraries Government Documents Department
Development of High-Temperature Strain Gages

Development of High-Temperature Strain Gages

Date: March 17, 1961
Creator: Pitts, J. W. & Moore, D. G.
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Bibliography of Temperature Measurement: January 1953 to June 1960

Bibliography of Temperature Measurement: January 1953 to June 1960

Date: April 6, 1961
Creator: Halpern, Carl & Moffat, Robert J.
Description: 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.
Contributing Partner: UNT Libraries Government Documents Department
Corrected Optical Pyrometer Readings

Corrected Optical Pyrometer Readings

Date: April 21, 1961
Creator: Poland, D. E.; Green, J. W. & Margrave, J. L.
Description: 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.
Contributing Partner: UNT Libraries Government Documents Department
Causes of Variation in Chemical Analyses and Physical Tests of Portland Cement

Causes of Variation in Chemical Analyses and Physical Tests of Portland Cement

Date: April 27, 1961
Creator: Bean, B. Leonard & Dise, John R.
Description: 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.
Contributing Partner: UNT Libraries Government Documents Department
Thermal Expansion of Technical Solids at Low Temperatures: A Compilation From the Literature

Thermal Expansion of Technical Solids at Low Temperatures: A Compilation From the Literature

Date: May 19, 1961
Creator: Corruccini, Robert J. & Gniewek, John J.
Description: Report giving tables of the linear contraction relative to 293 ºK, (L293ºLT)/L293, and the linear expansion coefficient, dL/L293dT, of thirty elements, forty-five alloys, twenty-two other inorganic substances and twenty plastics and elastomers in the temperature range, 0 to 300 ºK.
Contributing Partner: UNT Libraries Government Documents Department