DIMENSIONS/NBS (formerly Technical News Bulletin)-This monthly magazine is published to inform scientists, engineers, businessmen, industry, teachers, students, and consumers of the latest advances in science and technology, with primary emphasis on the work at NBS. The magazine highlights and reviews such issues as energy research, fire protection, building technology, metric conversion, pollution abatement, health and safety, and consumer product performance. In addition, it reports the results of Bureau programs in measurement standards and techniques, properties of matter and materials, engineering standards and services, instrumentation, and automatic data processing.

Annual subscription: Domestic, $12.50; Foreign, $15.65.

NOTE: At present the principal publication outlet for
these data is the Journal of Physical and Chemical
Reference Data (JPCRD) published quarterly for NBS
by the American Chemical Society (ACS) and the Amer-
ican Institute of Physics (AIP). Subscriptions, reprints,
and supplements available from ACS, 1155 Sixteenth
St. N.W., Wash. D. C. 20056.
Building Science Series—Disseminates technical infor-
mation developed at the Bureau on building materials,
components, systems, and whole struct ires. The series
presents research results, test methods, and perform-
ance criteria related to the structural and environmental
functions and the durability and safety characteristics
of building elements and systems.
Technical Notes--Studies or reports which are complete
in themselves but restrictive in their treatment of a
subject. Analogous to monographs but not so compre-
hensive in scope or definitive in treatment of the sub-
ject area. Often serve as a vehicle for final reports of
work performed at NBS under the sponsorship of other
government agencies.
Voluntary Product Standards—Developed under proce-
dures published by the Department of Commerce in Part
10, Title 15, of the Code of Federal Regulations. The
purpose of the standards is to establish nationally rec-
ognized requirements for products, and to provide all
concerned interests with a basis for common under-
standing of the characteristics of the products. NBS
administers this program as a supplement to the activi-
ties of the private sector standardizing organizations.
Consumer Information Series—Practical information,
based on NBS research and experience, covering areas
of interest to the consumer. Easily understandable lang-
uage and illustrations provide useful background knowl-
edge for shopping in today's technological marketplace.
Order above NBS publications from: Superintendent
of Documents, Government Printing Office, Washington,
D.C. 20402.
Order following NBS publications--NBSIR's and FIPS
from the National Technical Information Services,
Springfield, Va. 22161.
Federal Information Processing Standards Publications
(FIPS PUBS)- Publications in this series collectively
constitute the Federal Information Processing Stand-
ards Register. Register serves as the official source of
information in the Federal Government regarding stand-
ards issued by NBS pursuant to the Federal Property
and Administrative Services Act of 1949 as amended,
Public Law 89-306 (79 Stat. 1127), and as implemented
by Executive Order 11717 (38 FR 12315, dated May 11,
1973) and Part 6 of Title 15 CFR (Code of Federal
Regulations).
NBS Interagency Reports (NBSIR)-A special series of
interim or final reports on work performed by NBS for
outside sponsors (both government and non-govern-
ment). In general, initial distribution is handled by the
sponsor; public distribution is by the National Techni-
cal Information Services (Springfield, Va. 22161) in
paper copy or microfiche form.

NONPERIODICALS
Monographs-Major contributions to the technical liter-
ature on various subjects related to the Bureau's scien-
tific and technical activities.
Handbooks—Recommended codes of engineering and
industrial practice (including safety codes) developed
in cooperation with interested industries, professional
organizations, and regulatory bodies.
Special Publications--Include proceedings of conferences
sponsored by NBS, NBS annual reports, and other
special publications appropriate to this grouping such
as wall charts, pocket cards, and bibliographies.
Applied Mathematics Series— Mathematical tables, man-
uals, and studies of special interest to physicists, engi-
neers, chemists, biologists, mathematicians, com-
puter programmers, and others engaged in scientific
and technical work.
National Standard Reference Data Series—Provides
quantitative data on the physical and chemical proper-
ties of materials, compiled from the world's literature
and critically evaluated. Developed under a world-wide
program coordinated by NBS. Program under authority
of National Standard Data Act (Public Law 90-396).

BIBLIOGRAPHIC SUBSCRIPTION SERVICES The following current-awareness and literature-survey Superconducting Devices and Materials. A literature bibliographies are issued periodically by the Bureau: survey issued quarterly. Annual subscription: $30.00 . Cryogenic Data Center Current Awareness Service. A

Send subscription orders and remittances for the preliterature survey issued biweekly. Annual subscription: Domestic, $25.00 ; Foreign, $30.00.

ceding bibliographic services to National Bureau of Liquified Natural Gas. A literature survey issued quar

Standards, Cryogenic Data Center (275.02) Boulder,

on00