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Standard X-ray Diffraction Powder Patterns: Section 11. Data for 70 Substances

Description: Report documenting standard x-ray diffraction powder patterns for various compounds, intended to replace previous data or provide information for new substances. It describes the methods and, for each substance, outlines any previous data as well as information about the sample used and structural data, with a table of diffraction patterns.
Date: February 1974
Creator: Swanson, Howard E.; McMurdie, Howard F.; Morris, Marlene C.; Evans, Eloise H. & Paretzkin, Boris
open access

Standard X-ray Diffraction Powder Patterns: Section 12. Data for 57 Substances

Description: Report documenting standard x-ray diffraction powder patterns for various compounds, intended to replace previous data or provide information for new substances. It describes the methods and, for each substance, outlines any previous data as well as information about the sample used and structural data, with a table of diffraction patterns.
Date: February 1975
Creator: McMurdie, Howard F.; Morris, Marlene C.; Evans, Eloise H.; Paretzkin, Boris; de Groot, Johan H.; Hubbard, Camden R. et al.
open access

Measurement Assurance for Gage Blocks

Description: Report discussing the philosophy of measurement assurance and the three levels of measurement assurance programs. The measurement assurance programs are outlined to show how control over the measurement process can be maintained and how the offset (or systematic error) from the unit of length maintained by the National Bureau of Standards ban be made negligible. This monograph is intended for those who need to know on a continuing basis the uncertainty of their gage block calibration procedure.
Date: February 1979
Creator: Croarkin, Carroll; Beers, John & Tucker, Clyde
open access

Automatic Indexing: A State-of-the-Art Report

Description: Report issued by the U.S. National Bureau of Standards discussing results of a survey conducted on automatic mechanized indexing and data processing. As stated in the introduction, "it has concentrated on the major developments in and related demonstrations of automatic indexing potentialities. Examples are also given of indexes compiled by machine and of potentially related research efforts in such areas as natural language text searching, statistical association techniques used for search and… more
Date: February 1970
Creator: Stevens, Mary Elizabeth
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