5. AUTHOR(S) Marlene C. Morris, Howard F. McMurdie, Eloise H. Evans, Boris Paretzkin, Harry S. Parker, Nicolas C. Panagiotopoulos, and Camden R. Hubbard

6. PERFORMING ORGANIZATION (If joint or other than NBS, see instructions)

NATIONAL BUREAU OF STANDARDS
DEPARTMENT OF COMMERCE

WASHINGTON, D.C. 20234

JCPDS

International Centre for Diffraction Data Swarthmore, PA 19081

9. SPONSORING ORGANIZATION NAME AND COMPLETE ADDRESS (Street, City, State, ZIP)

7. Contract/Grant No.

8. Type of Report & Period Covered Final

10. SUPPLEMENTARY NOTES

Library of Congress Catalog Card Number:

53-61386

Document describes a computer program; SF-185, FIPS Software Summary, is attached.

11. ABSTRACT (A 200-word or less factual summary of most significant information. If document includes a significant bibliography or literature survey, mention it here)

Standard x-ray powder diffraction patterns are presented for 58 substances. These experimental patterns, useful for identification, were obtained by diffractometer methods. The lattice constants were refined by least-squares methods, and reflections were assigned Miller indices consistent with space group extinctions. Relative intensities, calculated densities, literature references, and other relevant data are included.

12. KEY WORDS (Six to twelve entries; alphabetical order; capitalize only proper names; and separate key words by semicolons) Crystal structure; densities; lattice constants; powder patterns; reference intensities; standard; x-ray diffraction.

13. AVAILABILITY

XUnlimited

14. NO. OF

PRINTED PAGES 110

For Official Distribution. Do Not Release to NTIS

Order From Superintendent of Documents, U.S. Government Printing Office, Washington, DC
20402.

15. Price

Order From National Technical Information Service (NTIS), Springfield, VA. 22161

USCOMM-DC 6043-P80