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 Serial/Series Title: National Bureau of Standards Reports
 Collection: Technical Report Archive and Image Library
The Fundamental Basis for the Standardization of Electrical Instruments and Meters

The Fundamental Basis for the Standardization of Electrical Instruments and Meters

Date: May 7, 1948
Creator: Silsbee, Francis B.
Description: Description of the standards used by the electrical power industry for the measurement of the electrical quantities.
Contributing Partner: UNT Libraries Government Documents Department
Safety for the Household

Safety for the Household

Date: January 12, 1948
Creator: Owen, S. J.
Description: Introduction: The purpose of this circular is (a) to emphasize the seriousness of certain risks to life and property frequently occurring in or about the home, (b) to give simple methods of care and caution against such hazards, and (c) to stimulate interest in public measures directed toward safety for household and community.
Contributing Partner: UNT Libraries Government Documents Department
Standard Time Zones of the United States and adjacent Parts of Canada and Mexico as of October 1, 1935

Standard Time Zones of the United States and adjacent Parts of Canada and Mexico as of October 1, 1935

Date: 1935
Creator: Geological Survey (U.S.)
Description: One map showing standard time zones of the United States as of October 1, 1935, with an updated map showing new boundaries in Georgia, Ohio, and Michigan. Notes on the first map describe the changes effective September 27, 1936 and November 23, 1941.
Contributing Partner: UNT Libraries Government Documents Department
Map of Standard Time Zones of the United States and Adjacent Parts of Canada and Mexico as of January 1, 1948

Map of Standard Time Zones of the United States and Adjacent Parts of Canada and Mexico as of January 1, 1948

Date: January 1, 1948
Creator: Geological Survey (U.S.)
Description: Map of the United States and surrounding areas with time zones marked and labeled in red. Bodies of water are marked, with depth marked by hatchures, as well as state lines and major cities..
Contributing Partner: UNT Libraries Government Documents Department
Nomograms for Obtaining the Compound Composition of Hydrated Limes from the Oxide Analysis

Nomograms for Obtaining the Compound Composition of Hydrated Limes from the Oxide Analysis

Date: December 30, 1949
Creator: Levin, Ernest M.
Description: Report with two nomograms presented for rapidly obtaining the compound composition of hydrated limes from the oxide analysis. The general nomogram can be applied to any commercial hydrated lime and gives values accurate to within 0.3 percent while the special nomogram is applicable only to regularly hydrated and highly hydrated dolomitic limes and is accurate to within 0.1 percent.
Contributing Partner: UNT Libraries Government Documents Department
Charts of Compressibility Factors and Charts Showing Quantities Delivered by Commercial Cylinders for Hydrogen, Nitrogen, and Oxygen

Charts of Compressibility Factors and Charts Showing Quantities Delivered by Commercial Cylinders for Hydrogen, Nitrogen, and Oxygen

Date: November 17, 1948
Creator: Hoge, Harold J.
Description: Two charts are given for each of the gases hydrogen, nitrogen, and oxygen. The first gives directly the number of standard cubic feet of the gas which a cylinder will deliver. The second chart gives values of the compressibility factor and of the density.
Contributing Partner: UNT Libraries Government Documents Department
The Modernized Metric System: the International System of Units (SI) and its Relationship to U.S. Customary Units

The Modernized Metric System: the International System of Units (SI) and its Relationship to U.S. Customary Units

Date: 1968
Creator: United States. National Bureau of Standards.
Description: Chart of the six base units of the modernized metric system, including length, time, mass, temperature, electric current, and luminous intensity.
Contributing Partner: UNT Libraries Government Documents Department
The Modernized Metric System: the International System of Units-SI

The Modernized Metric System: the International System of Units-SI

Date: August 1981
Creator: United States. National Bureau of Standards.
Description: Revised wall chart of the seven base units of the modernized metric system, including length, mass, time, electric current, temperature, amount of substance, luminous intensity, and plane angle.
Contributing Partner: UNT Libraries Government Documents Department
[Charts for Various Aspects of Poles]

[Charts for Various Aspects of Poles]

Date: August 7, 1944
Creator: United States. National Bureau of Standards.
Description: Chart 1A-1B. Conductor loading nomograph, Chart 2A. Bending moment due to wind pressure on pole, Chart 2B. Ultimate resisting moments of wood poles, Chart 3. Catenary curve.
Contributing Partner: UNT Libraries Government Documents Department
Large Mollier Chart (Foot-Pound-Fahrenheit Units): Properties of Ammonia

Large Mollier Chart (Foot-Pound-Fahrenheit Units): Properties of Ammonia

Date: 1924
Creator: United States. Bureau of Standards.
Description: Large mollier chart showing the properties of ammonia.
Contributing Partner: UNT Libraries Government Documents Department
Bending Moment Due to Wind Pressure on Pole Chart 2A

Bending Moment Due to Wind Pressure on Pole Chart 2A

Date: August 7, 1944
Creator: United States. National Bureau of Standards.
Description: Chart showing bending moment due to wind pressure on poles for various pole heights, circumferences, and loading. It is enlarged from figures in NBS discussion of national electrical safety code (handbook H39).
Contributing Partner: UNT Libraries Government Documents Department
Catenary Chart 3

Catenary Chart 3

Date: August 7, 1944
Creator: United States. National Bureau of Standards.
Description: Chart of catenary curve ordinates: "The curve gives approximate values of sag at all points on the catenary curve expressed in per cent of the center sag. The error is negligible for all spans in which the center sag is less than 10% of the span length." It is enlarged from figures in NBS discussion of national electrical safety code (handbook H39).
Contributing Partner: UNT Libraries Government Documents Department
Conductor Loading Nomograph Chart 1B

Conductor Loading Nomograph Chart 1B

Date: August 7, 1944
Creator: United States. National Bureau of Standards.
Description: Chart related to conductor loading showing vertical, transverse and conductor loads in pounds per linear feet of conductor. It is enlarged from figures in NBS discussion of national electrical safety code (handbook H39).
Contributing Partner: UNT Libraries Government Documents Department
Ultimate Resisting Moments of Wood Poles Chart 2B

Ultimate Resisting Moments of Wood Poles Chart 2B

Date: August 7, 1944
Creator: United States. National Bureau of Standards.
Description: Chart showing the ultimate resisting moments of wood poles based on the circumferences at ground line for different kinds of woods. It is enlarged from figures in NBS discussion of national electrical safety code (handbook H39).
Contributing Partner: UNT Libraries Government Documents Department
Report of the Twenty-Second National Conference on Weights and Measures, 1929

Report of the Twenty-Second National Conference on Weights and Measures, 1929

Date: June 1929
Creator: United States. National Bureau of Standards.
Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Contributing Partner: UNT Libraries Government Documents Department
Report of the Thirty-Third National Conference on Weights and Measures, 1947

Report of the Thirty-Third National Conference on Weights and Measures, 1947

Date: September 1948
Creator: United States. National Bureau of Standards.
Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Contributing Partner: UNT Libraries Government Documents Department
Report of the Thirty-Seventh National Conference on Weights and Measures, 1952

Report of the Thirty-Seventh National Conference on Weights and Measures, 1952

Date: March 19, 1953
Creator: United States. National Bureau of Standards.
Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Contributing Partner: UNT Libraries Government Documents Department
Report of the Twenty-Fourth National Conference on Weights and Measures, 1931

Report of the Twenty-Fourth National Conference on Weights and Measures, 1931

Date: June 1931
Creator: United States. National Bureau of Standards.
Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Contributing Partner: UNT Libraries Government Documents Department
Report of the Twenty-Fifth National Conference on Weights and Measures, 1935

Report of the Twenty-Fifth National Conference on Weights and Measures, 1935

Date: June 1936
Creator: United States. Bureau of Standards.
Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Contributing Partner: UNT Libraries Government Documents Department
Report of the Twenty-Sixth National Conference on Weights and Measures, 1936

Report of the Twenty-Sixth National Conference on Weights and Measures, 1936

Date: June 1937
Creator: United States. National Bureau of Standards.
Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Contributing Partner: UNT Libraries Government Documents Department
Report of the Twenty-Third National Conference on Weights and Measures, 1930

Report of the Twenty-Third National Conference on Weights and Measures, 1930

Date: June 1931
Creator: United States. National Bureau of Standards.
Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Contributing Partner: UNT Libraries Government Documents Department
Compressibilities of gases

Compressibilities of gases

Date: November 21, 1925
Creator: Pickering, Samuel Fisher
Description: Reproduction of thirteen graphs for computing compressibilities of various gases and for computing the volumes delivered from cylinders containing various gases.
Contributing Partner: UNT Libraries Government Documents Department
Report of the Twenty-First National Conference on Weights and Measures, 1928

Report of the Twenty-First National Conference on Weights and Measures, 1928

Date: May 1928
Creator: United States. National Bureau of Standards.
Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Contributing Partner: UNT Libraries Government Documents Department
Design for Better Window Performance

Design for Better Window Performance

Date: May 1980
Creator: Hastings, Robert S. & Driscoll, Porter
Description: Matrix diagram for design and construction of windows for energy conservation in buildings.
Contributing Partner: UNT Libraries Government Documents Department
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