The two National Bureau of Standards Circulars included here are indexes of publications from the National Bureau of Standards. One volume covers publications from 1901 to June 1947. The second volume covers July 1947 to June 1957.
NBS Circulars were a publication series. They were compilations of information on various subjects related to the Bureau’s scientific, technical, and engineering activities. They included not only the results of Bureau studies, but also data of general interest from other sources.
This series also contained Recommended Specifications, United States Government Specifications, and United States Government Master Specifications formerly issued by the Bureau. These bore a specification number in addition to the Bureau Circular number, but all of these specifications were canceled or superseded by Federal Specifications formulated by the Federal Specifications Board.
The series was discontinued in June 1959 and circular material was directed to the Journal of Research and the Monograph series.
NBS Circular 460 - Publications of the National Bureau of Standards, 1901 to June 30, 1947
NBS Circular 460 - Supplementary List of Publications of the National Bureau of Standards. July 1, 1947, to June 30, 1957