NBS Special Publication, 77. izdajaU.S. Government Printing Office, 1927 |
Pogosti izrazi in povedi
A. E. S. C. procedure adopted Aeronautics American Engineering Standards American Petroleum Institute American Railway Association American Society ampere Ångstrom apparatus appointed approved brick Building Bureau of Aeronautics Bureau of Standards cadmium chemical Commission conference construction cooperation Department of Commerce determine developed division of simplified electrical Engineering Standards Committee equipment established Federal Specifications Board formulated functioning under A. E. S. C. Government grades gypsum Highway industry International International Astronomical Union investigation joint sponsor laboratory Manufacturers Mechanical Engineers ment metals methods of testing mittee National Association National Bureau National Physical Laboratory Navy Department Office officially represented organizations paper Portland cement prepared purchasing agent recommendations requirements revised saccharimeter safety code samples Screw Thread secretary sectional committees functioning simplified practice Society for Testing Society of Mechanical standard methods standard specifications steel Street sucrose supplies technical committees temperature Testing Materials tion types United various Washington wave length
Priljubljeni odlomki
Stran 288 - Engineers The American Society of Civil Engineers The American Society of Mechanical Engineers...
Stran 31 - As a unit of resistance, the international ohm, which is based upon the ohm equal to 10" units of resistance of the CGS system of electromagnetic units, and is represented by the resistance offered to an unvarying electric current by a column of mercury at the temperature of melting ice, 14.4521 grams in mass, of a constant cross-sectional area and of the length of 106.3 centimetres.
Stran 109 - ... standardizes where possible the forms and methods of contract letting to the end that a uniform policy may control the making of contracts, with a view to such changes in form of contracts as will tend to enlist the interest of the contractor in behalf of economy and promptness of execution, as well as to eliminate those uncertainties of construction and hazards to be assumed by the contractor which have operated to increase the cost of Government work and supplies...
Stran 95 - Engineers American Institute of Electrical Engineers American Institute of Mining and Metallurgical Engineers American Society of...
Stran 144 - Investigation of automotive engines : For the promotion of economy and efficiency in automotive transportation by land and by air through investigations of the basic principles underlying...
Stran 124 - Standards; together with not more than five additional persons who shall be acquainted with the needs of aeronautical science, either civil or military, or skilled in aeronautical engineering or its allied sciences : Provided.
Stran 87 - Government as the committee may see fit to call upon, who shall render whatever assistance they may require, provided that the articles intended to be purchased in this manner shall be those in common use by or suitable to the ordinary needs of two or more such departments or establishments. Every purchase or drawing of such supplies from the contractor is immediately reported to said committee. No disbursing officer may be a member of the committee.
Stran 133 - ... place names within the United States and its insular possessions, and all names suggested by any officer of the Government shall be referred to the board before publication. The decisions of the board are to be accepted by all the departments of the Government as standard authority.
Stran 28 - Ampere is the unvarying electric current which, when passed through a solution of silver nitrate in water in accordance with standard specifications, deposits silver at the rate of 0.00111800 gram per second.
Stran 87 - Committee to make an annual schedule of required miscellaneous supplies for the use of each of the executive departments and other Government establishments in Washington, to standardize such supplies, eliminating all unnecessary grades and varieties, and to solicit bids based upon formulas and specifications drawn up by such experts in the service of the Government as the committee may see fit to call upon, who shall render whatever assistance they may require, provided that the articles intended...