[United States National Bureau of Standards Ruler]

[United States National Bureau of Standards Ruler]

Date: December 1972
Creator: United States. National Bureau of Standards.
Description: Ruler issued by the United States National Bureau of Standards. The front includes measurements in centimeters (to 15) and inches (to 6); there is text on the back comparing metric and customary units for length, volume, and weight.
Contributing Partner: UNT Libraries Government Documents Department
[United States National Bureau of Standards Metric Conversion Card]

[United States National Bureau of Standards Metric Conversion Card]

Date: May 1976
Creator: United States. National Bureau of Standards.
Description: Conversion card issued by the United States National Bureau of Standards containing conversion information for length, area, mass (weight), volume, and temperature (exact). The front lists "Approximate Conversions to Metric Measures" and includes a continuum of temperatures at the bottom and a centimeter ruler along the right side (to 8 cm.). The back of the card lists "Approximate Conversions from Metric Measures" and includes an inch ruler along the right side (to 3 in.).
Contributing Partner: UNT Libraries Government Documents Department
Brief History of Measurement Systems: with a Chart of the Modernized Metric System

Brief History of Measurement Systems: with a Chart of the Modernized Metric System

Date: August 1976
Creator: United States. National Bureau of Standards.
Description: Pamphlet issued by the United States National Bureau of Standards providing an overview of the English system of measurement used in the United States and of the metric system. The internal pages of the pamphlet contain a chart labeled "The Modernized Metric System" which includes tables of common conversions and a chart of the seven base units: meter/length, kilogram/mass, second/time, ampere/electric current, kelvin/temperature, mole/amount of substance, and candela/luminous intensity, as well as two supplementary units: radian/plane angle and steradian/solid angle. There is also a graphic representation of yards versus meters in ruler form at the bottom.
Contributing Partner: UNT Libraries Government Documents Department