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(e) A decision upon review completed as provided by this section shall constitute the final decision and action of the Bureau as to the availability of a requested record, except as may be required by court proceedings initiated pursuant to 5 U.S.C. 552(a) (3).

(f) Reconsiderations resulting in final decisions as prescribed herein shall be indexed and kept available for public reference in the facility. $60.12 Subpoena or other compulsory

process. Procedures applicable in the event of a subpoena, order, or other compulsory process or demand of a court or other authority are set forth in section 7 of Department Order 64.

Notice and public procedure are not necessary for the promulgation of this part since the rules contained herein are procedural rather than substantive in nature and relate to agency management.

$ 70.1 Cutoff date and the effect on enu

meration. The Bureau of the Census will recognize only those boundaries legally in effect on January 1, 1970, for the tabulation and publication of data from the 1970 Censuses of Population and Housing. Respondents will be enumerated on the census date as residing within the legal limits of municipalities, wards, the county subdivision areas, and counties as these limits existed on January 1 of the census year. $ 70.2 County subdivision defined for

census purposes. For purposes of this part, county subdivisions are defined to include the areas identified by the Bureau of the Census as minor civil divisions. Although civil and judicial townships are the most frequent type of minor civil division, there are also beats, election districts, magisterial districts, towns, and other areas. A more complete description appears on page XXI of "1960 Census of Population, Volume I, Part A." $ 70.3 Effect of boundary changes after

the cutoff date. Changes in boundaries that become effective after January 1, 1970, will not be recognized by the Bureau of the Census in taking the 1970 Federal censuses. The residents of any area which is transferred to another jurisdiction after January 1, 1970 will be enumerated in the census as residents of the area in which their respective residences were located on January 1.



FOR THE 1970 CENSUSES Sec. 70.1 Cutoff date and the effect on enumera

tion. 70.2 County subdivision defined for census

purposes. 70.8 Effect on boundary changes after the

cutofi date. AUTHORITY: The provisions of this part 70 issued under 18 U.S.C. 4, 5; and the delegation to the Director, Bureau of the Census by Department of Commerce Order No. 85.

SOURCE: The provisions of this part 70 appear at 32 F.R. 15154, Nov. 2, 1967.

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SUBCHAPTER A-MEASUREMENT SERVICES Part 200 Policies, services, procedures, and fees.

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240 241

Barrels and other containers for lime.
Barrels for fruits, vegetables and other dry commodities, and for cranberries,



Fellowships in laboratory standardization and testing for qualified citizens

of other American Republics. Research Associate Program.




Standard for devices to permit the opening of household refrigerator doors

from the inside.



PROCEDURES, AND FEES Sec. 200.100 Statutory functions. 200.101 Measurement research. 200.102 Standards for measurement. 200.103 Types of calibration and test serv

ices. 200.104 Consulting and advisory services. 200.105 Standard reference materials. 200.106 Critically evaluated data. 200.107 Publications. 200.108 WWV-WWVH-WWVB Broadcasts. 200.109 Request procedure. 200.110 Shipping, insurance, and risk of loss. 200.111 Priorities and time of completion. 200.112 Witnessing of operations. 200.113 Reports. 200.114 Use of results or reports. 200.115 Fees and bills. 200.116 Description of services and list of

fees, incorporation by reference. AUTHORITY: The provisions of this Part 200 are issued under sec. 9, 31 Stat. 1450, as amended; 15 U.S.C. 277. Interprets or applies sec. 7, 70 Stat. 959; 15 U.S.C. 275a.

SOURCE: The provisions of this part 200 appear at 32 F.R. 21012, Dec. 29, 1967, unless otherwise noted. $ 200.100 Statutory functions.

(a) The National Bureau of Standards has been assigned the following functions (15 U.S.C. 271-278e):

(1) The custody, maintenance, and development of the national standards of measurement, and the provision of means and methods for making measurements consistent with those standards, including the comparison of standards used in scientific investigations, engineering, manufacturing, commerce, and educational institutions with the standards adopted or recognized by the Government.

(2) The determination of physical constants and properties of materials when such data are of great importance to scientific or manufacturing interests and are not to be obtained with sufficient accuracy elsewhere.

(3) The development of methods for testing materials, mechanisms, and structures, and the testing of materials, supplies, and equipment, including items purchased for use of Government departments and independent establishments.

(4) Cooperation with other governmental agencies and with private organizations in the establishment of standard practices, incorporated in codes and specifications.

(5) Advisory service to Government agencies on scientific and technical problems.

(6) Invention and development of devices to serve special needs of the Gov. ernment.

(b) The calibration and testing activities of the Bureau stem from the functions in paragraph (a) (1) and (3) of this section. These activities are assigned primarily to the NBS Institute for Basic Standards. Its program provides the central basis within the United States for a complete and consistent system of physical measurement; coordinates that system and the measurement system of other nations; and furnishes essential services leading to accurate and uniform physical measurements throughout the Nation's scientific community, industry, and commerce.

(c) The provision of standard reference materials for sale to the public is assigned to the Office of Standard Reference Materials of the NBS Institute for Materials Research. It evaluates the requirements of science and industry for carefully characterized reference materials, stimulates the Bureau's efforts to develop methods for production of needed reference materials and directs their production and distribution. For information on standard reference materials see Subchapter B, Chapter II, of this Title 15.

(d) The provision of technical services to facilitate technical innovation and industrial use of the results of modern science and technology is assigned to the NBS Institute for Applied Technology. The principal elements of the Institute are (1) a Center for Computer Sciences and Technology which conducts research and provides technical services designed to improve cost effectiveness in the conduct of agency programs through the use of computers and related techniques; (2) technical divisions which provide services in technology of more general applicability; and (3) the Clearinghouse for Federal Scientific and Technical Information which promotes widest effective use by the scientific community, industry, and commerce of current information in all fields of industrial technology. $ 200.101 Measurement research.

(a) The NBS Institute for Basic Standards carries out the Bureau's func

tions in developing an adequate national related to the SI units by agreed-upon system of physical measurement, and in conversion factors. providing related calibration services. Its (b) The SI units for the six quantities staff continually reviews the advances in are defined as follows: science and the trends in technology, (1) In terms of a prototype object: examines the measurement potentiali (i) Mass: The “kilogram" is the mass ties of newly discovered physical phe of a platinum-irridium cylinder prenomena, and uses these to devise and im served at the International Bureau of prove standards, measuring devices, and Weights and Measures in Sèvres, France. measurement techniques. As new re Prototype No. 20 is kept at NBS; equivaquirements appear, there are continual lent prototypes are kept by other counshifts of program emphasis to meet the tries. most urgent needs for the measurement (2) In terms of natural phenomena: of additional quantities, extended (i) Length: The “meter" is the length ranges, or improved accuracies.

of exactly 1,650,763.73 wavelengths of (b) The basic research and develop radiation in vacuum corresponding to the ment activities of NBS are primarily unperturbed transition between

the funded by direct appropriations, and are levels 2p10 and 5ds of the atom of krypaimed at meeting broad general needs. ton 86, the orange-red line. The Bureau may also undertake investi (ii) Time interval: The "second" was gations or developments to meet some long defined as 1/86400 of the time respecialized physical measurement prob quired for an average complete rotation lem of another Government agency, in of the earth on its axis with respect to dustrial group, or manufacturing firm, the sun. This, with daily corrections using funds supplied by the requesting from zenith transits of a star, is the organization.

basis for a universal time scale (UT). $ 200.102 Standards for measurement.

With further correction for polar mo

tion, it becomes UT1, and with further (a) An international treaty, the Met correction for annual seasonal variaric Convention, was signed by 18 coun tions, UT2. Also, the earth's average tries in 1875. In 1893 the United States daily rotation rate has been decreasing, established prototype No. 27 of the inter thereby increasing the length of each national meter bar and prototype No. 20 year by about 6 ms over the length of the of the international kilogram as U.S. preceding year. Because of this, and Prototype Standards for length and other larger random fluctuations, the mass. Representatives of many of the universal second thus defined is not a 40 nations now adhering to this treaty constant. Consequently, the 11th Conmeet periodically, in the General Con ference (1960) ratified the definition of a ference of Weights and Measures, to con second based on ephemeris time (ET): sider detailed proposals concerning in “the fraction 1/31,556,925.9747 of the ternational standards for physical meas tropical year for January 0, 1900 at 12 urement. Successive Conferences have

o'clock ephemeris time." The 12th Connow agreed to adopt six units to serve ference (1964) authorized the designaas a practical base for an International tion of a cesium atom transition as a system of Units (Système International

standard of frequency to be used temd'Unités, abbreviated SI)—kilogram, porarily for the physical measurement meter, second, kelvin, ampere, and can of time. The 13th Conference (1967) dela. These are arbitrarily chosen but abrogated the 1960 action and decided precisely defined magnitudes of six phys

that: The unit of time of the Internaical quantities-mass, length, time, tem

tional System of Units is the second, deperature, electric current and luminous

fined in the following terms: "The secintensity, respectively_which are

ond is the duration of 9,192,631,770 pe

assigned unitary value in the International

riods of the radiation corresponding to

the transition between the two hyperSystem. Because the system is coherent,

fine levels of the fundamental state of the expressions for the other quantities

the atom of cesium 133." of science and technology derived from

(iii) Temperature: The "kelvin,” the these six through the equations of

unit of thermodynamic temperature, is physics will also have unitary coefi

the fraction 1/273.16 of the thermodycients. The units of the English system namic temperature of the triple point of pound, inch, second, degree Fahrenheit, water. It was decided by the 13th Conetc.—and of other systems of units are ference that the same name, kelvin, and

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