Patents are obtained on NBS inventions with high commercial potential, to establish Government ownership of the patent rights. The patents are then made available for the grant of nonexclusive licenses to all qualified applicants. A limited exclusive license may be granted under a particular patent if it appears some period of exclusivity is necessary as an incentive for the investment of risk capital. For information on licensing any of the NBS held patents, write to the Office of the Legal Adviser, National Bureau of Standards, Washington, DC 20234. Copies of patents may be obtained from the U.S. Patent and Trademark Office, Washington, DC 20231, for 50 cents each.

3.3. NBS BIBLIOGRAPHIC SUBSCRIPTION SERVICES

The Cryogenic Data Center of the National Bureau of Standards, Boulder, CO has developed specialized bibliographies to provide interested audiences with information on latest developments in certain specialized fields. These issuances, together with subscription information, are listed as follows:

4.1. PURCHASE PROCEDURES

Publications of the Bureau are available from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402, at the prices listed in this publication. However, prices are subject to change without notice. You may also order through the U.S. Department of Commerce District Office nearest you (see Appendix B for list of District Offices of the U.S. Department of Commerce). Microfiche copies of all recent NBS publications, and paper copies of many nonperiodicals, may be ordered through the National Technical Information Service, U.S. Department of Commerce, Springfield, VA 22161. Note that three of the nonperiodical series are available only from NTIS; these are FIPS PUBS, NBS Interagency Reports (NBSIR's), and Grantee/Contractor Reports (GCR's).

This section includes price lists of available publications, plus instructions on how to acquire reprints of articles by NBS authors, and how to get out-of-print material.

How To Make Remittances. Remittances for publications for which individual sales or subscription prices are shown should be mailed to Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402, by money order or check. Master Charge and VISA are also accepted. Be sure to give your credit card number and expiration date on all orders. Postage stamps will not be accepted. Publications cannot be mailed before remittances are received. Foreign remittances should be made either by international money order, draft on an American or Canadian bank or UNESCO coupons.

The letter symbol, publication number, full title of the publication, SD stock number MUST be given when ordering. The Superintendent of Documents allows a discount of 25 percent on orders of 100 or more copies of one publication, when mailed to a single address.

Persons who make frequent purchases from the Superintendent of Documents may find a deposit account convenient. Deposits of $50 or more are accepted, against which orders may be placed without making individual remittances or first obtaining quotations. Order blanks are furnished for this purpose. After the order has been processed, the order itself is returned, showing the publications supplied, explanations regarding those not sent, the amount of charge, and the balance on deposit.

No charge is made for postage on documents sent to points in the United States and its possessions. In computing foreign postage, the charge is approximately one-fourth of the current selling price of the publication. The charge is to cover the special handling required to comply with the customs and international mailing regulations.

How To Make Remittances to NTIS. Orders for publications purchased from the National Technical Information Service (NTIS) must be accompanied by postal money order, express money order, or check made out to the NTIS and covering total cost of the publications order. NTIS also accepts charges to American Express, VISA, or Master Charge. You may also establish an NTIS deposit account by contacting them for this service. All inquiries or orders should be addressed to: National Technical Information Service, Springfield, VA 22161.

SD and NTIS order forms are included at the end of this publication for your convenience in ordering.

4.2. ANNOUNCEMENTS OF NBS PUBLICATIONS

The National Bureau of Standards and the agencies mentioned below regularly issue the following official announcements dealing with NBS publications.

DIMENSIONS/NBS. Issued monthly by the National Bureau of Standards. In addition to publishing technical news of the Bureau, this periodical announces selected new publications in an NBS series. Available from the Superintendent of Documents, U.S. Government Print

ing Office, Washington, DC 20402. Annual subscription, $11; $13.75 foreign. Single copies, $1.10 domestic; $1.40 foreign.

NBS JOURNAL OF RESEARCH. The Journal carries a listing of all NBS Publications as issued. See Section 4.6. for subscription information.

Monthly Catalog of United States Government Publications. Issued by by the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402. Annual subscription, with consolidated annual index, $45; $56 foreign.

Selected List of U.S. Government Publications. Issued monthly by the Superintendent of Documents. Each list is arranged by subject, with annotations, prices, and order form. May be obtained free from the U.S. Government Printing Office, Superintendent of Documents, Mail List Section, Stop SSOM, Washington, DC 20402.

Commerce Publications Update. Biweekly announcement of publications of the Department of Commerce. Lists titles and prices of National Bureau of Standards publications, as well as those of other offices of the Department of Commerce. Contact the Editorial Policy and Review Division, Office of Publications, U.S. Department of Commerce, Washington, DC 20230, for information on how to receive this listing.

NBS Publications Newsletter. This newsletter is issued approximately six times a year. It presents full citations, including abstracts and availability information, for NBS papers announced during the report period. Its primary audience includes librarians, documentalists, and science information specialists. However, other NBS audiences also find it useful as a guide to new NBS publications.

Contact: Editor, NBS Publications Newsletter, Technical Information and Publications Division, National Bureau of Standards, Washington, DC 20234.

4.3. CATALOGS OF NBS PUBLICATIONS

These catalogs list the titles of all NBS publications through December 31, 1979. The catalogs are available from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402, unless otherwise stated, or may be consulted in a library which maintains sets of National Bureau of Standards publications.

Circular 460: Publications of the National Bureau of Standards 1901 to June 30, 1947. 375 pages including subject and author indexes. Brief abstracts are included for the period January 1, 1941 to June 30, 1947.........

Supplement to Circular 460: Publications of the National Bureau of Standards, July 1, 1947 to June 30, 1957. 373 pages, including subject and author indexes Miscellaneous Publication 240: Publications of the National Bureau of Standards, July 1, 1957 to June 30, 1960. First NBS Catalog to include Titles of Papers published in Outside Journals 1950 to 1959, 391 pages including subject and author indexes... Supplement to Miscellaneous Publication 240: Publications of the National Bureau of Standards published by NBS, July 1960 through June 1966; published by others, 1960 through 1965. 740 pages, including subject and author indexes ..

Special Publication 305: Publications of the National Bureau of Standards, published by NBS, July 1966 through December 1967; published by others, 1966-1967. 223 pages, a citation of titles and abstracts, with key words and author indexes....... Supplement 1 to Special Publication 305: Publications of the National Bureau of Standards, 1968 through 1969. 497 pages, a citation of titles and abstracts, with key words and author indexes. Supplement 2 to Special Publication 305: Publications

of the National Bureau of Standards, 1970. 378 pages, a citation of titles and abstracts, with key words and author indexes Supplement 3 to Special Publication 305: Publications of the National Bureau of Standards, 1971. 342 pages,

a citation of titles and abstracts, with key words and author indexes

Supplement 4 to Special Publication 305: Publications of the National Bureau of Standards, 1972. 449 pages, a citation of titles and abstracts, with key words and author indexes

Supplement 5 to Special Publication 305: Publications of the National Bureau of Standards, 1973. 349 pages, a citation of titles and abstracts, with key words and author indexes ....

Supplement 6 to Special Publication 305: Publications of the National Bureau of Standards, 1974. 523 pages, a citation of titles and abstracts, with key words and author indexes

Supplement 7 to Special Publication 305: Publications of the National Bureau of Standards, 1975. 595 pages, a citation of titles and abstracts, with key words and author indexes.....

Supplement 8 to Special Publication 305: Publications of the National Bureau of Standards, 1976. 728 pages, a citation of titles and abstracts, with key words and author indexes

Supplement 9 to Special Publication 305: Publications of the National Bureau of Standards, 1977. 601 pages, a citation of titles and abstracts, with key words and author indexes

Supplement 10 to Special Publication 305: Publications of the National Bureau of Standards, 1978. 679 pages, a citation of titles and abstracts, with key words and author indexes Supplement 11 to Special Publication 305: Publications of the National Bureau of Standards, 1979. 615 pages, a citation of titles and abstracts, with key words and author indexes..

$8

$11

$11

*Available by purchase from the National Technical Information Service, Springfield, VA 22161. See Price List for ordering numbers. Note: All citations in NBS SP305 and its Supplements 1 through 8 have been accumulated into NBS SP535, Volumes 1 and 2 (see Notice, page 9).

4.4. FUNCTIONS OF DEPOSITORY LIBRARIES IN THE UNITED STATES

The Superintendent of Documents, U.S. Government Printing Office, is authorized by law to furnish Government publications to designated depository libraries.

Under Provisions of Title 44 of the United States Code, certain libraries are designated depositories for Government publications. Through them, Federal Government documents are made available to residents of every State, the District of Columbia, Guam, Puerto Rico, and the Virgin Islands. Distribution to the libraries is made by the Superintendent of Documents.

It is sometimes impossible to obtain desired publications by purchase from the Superintendent of Documents. Stocks may have been exhausted or the document may be permanently out of print. The depositories provide a valuable service by keeping such publications permanently available. Every Government publication cannot be consulted at all depository libraries. Designated Regional Depositories are required to receive and retain one copy of all Government publications made available to depository libraries either in printed or microfacsimile form. All other libraries are allowed to select the classes of publications best suited to the interest of their particular clientele.

These libraries are now receiving selected publication series of the National Bureau of Standards for general reference use. Whether a given library has a copy of a particular publication can be determined by inquiring at the library.

4.5. FUNCTIONS OF U.S. DEPARTMENT OF COMMERCE DISTRICT OFFICES

U.S. Department of Commerce District Offices provide ready access at the local level to the services of the Department of Commerce and its reports, publications, statistical statements, and surveys. Most District Offices serve as official sales agents of the Superintendent of Documents, U.S. Government Printing Office, making available for purchase locally a wide range of Government business publications. The reference library maintained by each District Office contains many Government and private publications, periodicals, directories, reports, and other reference materials.

2 Foreign price includes the cost of the publication and postage. 'Prices of the bound volumes vary. The Superintendent of Documents will furnish prices on request.

B. SUPERSEDED NBS REFERENCE PUBLICATIONS

NBS publications not listed in the price lists are out of print and are not available from the Superintendent of Documents. Many can be consulted at libraries. Also, in many cases, photoduplicated copies can be purchased from the Library of Congress. For full information concerning this service, write to the Photoduplication Service, Library of Congress, Washington, DC 20540.

Certain NBS Publications are out of print because they have been replaced or partially replaced, by material issued by other organizations. In this connection NBS is able to offer the following information:

Circular 410, National Standard Petroleum Oil Tables. Information in this Circular has been incorporated in the American Edition-ASTM Petroleum Measurement Tables issued as PCN12-4125-10-12 by the American Society for Testing and Materials, 1916 Race Street, Philadelpha, PA 19103. Available at $30, 20 percent discount to ASTM members. Tables 5 and 7 of the ASTM Petroleum Measurement Tables may also be purchased from the ASTM in separate reprint form at $2.25 and $2 per copy respectively. Circular 438, Static Electricity. The National Fire Protection Association, 60 Batterymarch Street, Boston, MA 02110, has issued a publication by the same title, available from them as NFPA Publication 77, $3.50.

Circular 499, Nuclear Data. Replaced by Atomic Data and Nuclear Data Tables, published by Academic Press, 111 Fifth Avenue, New York, NY 10003. Available bi-monthly for $63.

Circular 547, Section 1, Precision Laboratory Standards of Mass Laboratory-Weights. Information in this Circular has been incorporated in the ANSI/ASTM E 617-78. Standard Specification for Laboratory Weights and Precision Mass Standards issued by the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103, Attn.: Sales, for $4.

Circular 576, Automotive Antifreezes. For information on this subject consult American National Standards Institute, 1430 Broadway, New York, NY 10018.

Circular 577 and Supplement, Energy Loss and Range of Electrons and Positrons. These have been superseded by NASA Special Publication 3012, available from the National Technical Information Service, Springfield, VA 22161, as N65-12506, at $10 hardcopy and $3.50 microfiche and N67-14099, at $6 hardcopy and $3.50 microfiche.

Miscellaneous Publication 179, American Standard Building Code Requirements for Minimum Design Loads in Buildings and Other Structures. The American National Standards Institute, 1430 Broadway, New York, NY 10018, has issued a publication on this subject. Available from them as A58.1-1972, at $9.75.

Miscellaneous Publication 187, Directory of Commercial and College Laboratories. A new Directory of Testing Laboratories, issued as STP 333D, is published by the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103, at $3.75.

NBS Handbook 28, Parts 1, 2, and 3, Screw Thread Standards. Federal Government responsibility for screw thread standards has been transferred to the General Services Administration (GSA). Standards will be promulgated by the GSA as Federal Standard 28. Technical questions should be addressed to Directorate of Engineering and Standardization, Defense Logistics Agency (DISC), 700 Robbins Ave., Philadelphia PA 19111, telephone (215) 697-3325. Questions regarding administration of the program should be addressed to Standards Control and Support Division, General Services Administration (Federal Supply Service), attn: FMHS, Washington, DC 20406, telephone (703) 557-7595.

Handbook 30, National Electrical Safety Code (also H81 and its Supplements and H110-1). All

Handbook 48, Control and Removal of Radioactive Contamination in Laboratories. Reprints of this Handbook can be purchased as NCRP Report 8 at $4 from NCRP Publications, P.O. Box 30175, Washington, DC 20014.

Handbook 49, Recommendations for Waste Disposal Phosphorus-32 and Iodine-131 for Medical Users. Reprints of this Handbook can be purchased as NCRP Report 9 at $4 from NCRP Publications, P.O. Box 30175, Washington, DC 20014.

Handbook 53, Recommendations for the Disposal of Carbon-14 Wastes. Reprints of this Handbook can be purchased as NCRP Report 12 at $4 from NCRP Publications, P.O. Box 30175, Washington, DC 20014.

Handbook 55, Protection Against Betatron-Synchrotron Radiations up to 100 Million Electron Volts, February 26, 1954 has been combined with NBS Handbook 97. Available as NCRP Report 51, Radiation Protection Design Guidelines for 0.1-100 MeV Particle Accelerator Facilities from NCRP Publications, P.O. Box 30175, Washington, DC 20014, at $7.

Handbook 58, Radioactive Waste Disposal in the Ocean. Reprints of this Handbook can be purchased as NCRP Report 16 at $4 from NCRP Publications, P.O. Box 30175, Washington, DC 20014.

Handbook 59, Permissible Dose from External Sources of Ionizing Radiations. Reprints of this Handbook can be purchased as NCRP Report 39 at $6 per copy from NCRP Publications, P.O. Box 30175, Washington, DC 20014.

Handbook 63, Protection Against Neutron Radiation up to 30 MeV. Reprints of this Handbook

can be purchased as NCRP Report 38 at $6 per copy from NCRP Publications, P.O. Box 30175, Washington, DC 20014.

Handbook 65, Safe Handling of Bodies Containing Radioactive Isotopes. Reprints of this Handbook can be purchased as NCRP Report 37 at $6 per copy from NCRP Publications, P.O. Box 30175, Washington, DC 20014.

Handbook 69, Maximum Permissible Body Burdens and Maximum Permissible Concentrations

of Radionuclides in Air and in Water for Occupational Exposure. Reprints of this Handbook can be purchased as NCRP Report 22 at $4 per copy from NCRP Publications, P.O. Box 30175, Washington, DC 20014.

Handbook 71, Specifications for Dry Cells and Batteries. Available as ANSI C18.1-1979 from the American National Standards Institute, 1430 Broadway, New York, NY 10018, at $6.25.

Handbook 73, Protection Against Radiations from Sealed Gamma Sources (Supersedes H54). Reprints of this Handbook can be purchased as NCRP Report 40 at $6 per copy from NCRP Publications, P.O. Box 30175, Washington, DC 20014.

Handbook 74, Building Code Requirements for Reinforced Masonry. The American National Standards Institute, 1430 Broadway, New York, NY 10018 has issued a publication on this subject. Available from them as ANSI/NBS Handbook H74-1960 (R1970), at $4.50.

Handbook 75, Measurement of Absorbed Dose of Neutrons and of Mixtures of Neutrons and Gamma Rays. Reprints of this Handbook can be purchased as NCRP Report 25 at $4 per copy from NCRP Publications, P.O. Box 30175, Washington, DC 20014.

Handbook 76, Medical X-ray Protection Up to Three Million Volts. Now available as NCRP 33. Purchase from NCRP Publications, P.O. Box 30175, Washington, DC 20014, at $5.

Handbook 80, A Manual of Radioactivity Procedures. Reprints of this Handbook are available as NCRP Report 58, for paper copy at $12, and Buckram at $14. For more information write to NCRP Publications, P.O. Box 30175, Washington, DC 20014.