NBS Special Publication, Issue 250U.S. Government Printing Office, 1965 |
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Page
... length__ 202.402 Working line standards of length .. 202.403 Commercial line standards of length .. 64 64 65 65 202. 407 Sieves 202. 408 202. 500 General .. 202. 404 Steel tapes . 202. 405 Invar base - line tapes . 202.406 Surveyors ...
... length__ 202.402 Working line standards of length .. 202.403 Commercial line standards of length .. 64 64 65 65 202. 407 Sieves 202. 408 202. 500 General .. 202. 404 Steel tapes . 202. 405 Invar base - line tapes . 202.406 Surveyors ...
Page 24
... length and size of the wire of the leads used in the secondary circuit . Alternatively the burden may be stated in terms of the volt - amperes and power factor of the secondary circuit at the test frequency . ( 3 ) The test equipment ...
... length and size of the wire of the leads used in the secondary circuit . Alternatively the burden may be stated in terms of the volt - amperes and power factor of the secondary circuit at the test frequency . ( 3 ) The test equipment ...
Page 27
... length to be not less than 25.4 cm ( 10 in . ) ; for magnetizing forces in the range 100 to 5,000 Oe , length to be not less than 7 cm ( 2 % in . ) . Specimens whose permeability is not greater than 4 may be of circular cross section ...
... length to be not less than 25.4 cm ( 10 in . ) ; for magnetizing forces in the range 100 to 5,000 Oe , length to be not less than 7 cm ( 2 % in . ) . Specimens whose permeability is not greater than 4 may be of circular cross section ...
Page 30
... length of about 12.5 μsec . Calibrations can be made at approximately 20 , 40 , 60 , 80 , and 100 kV . See 201.610z below . ] Item Description Fee 201.601a 201.601b 201.601z NOTE : Calibration of an inductive voltage divider under ...
... length of about 12.5 μsec . Calibrations can be made at approximately 20 , 40 , 60 , 80 , and 100 kV . See 201.610z below . ] Item Description Fee 201.601a 201.601b 201.601z NOTE : Calibration of an inductive voltage divider under ...
Page 50
... Length 202.401 Reference line standards of length 202.402 Working line standards of length 202.403 Commercial line standards of length 202.404 Steel tapes 202.405 Invar base - line tapes 202.406 Surveyors ' measuring instruments ( other ...
... Length 202.401 Reference line standards of length 202.402 Working line standards of length 202.403 Commercial line standards of length 202.404 Steel tapes 202.405 Invar base - line tapes 202.406 Surveyors ' measuring instruments ( other ...
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Common terms and phrases
Ac-dc accepted for calibration accuracy additional American Standards Association API Standard apparatus Appendix attenuators bolometer bolometer units bulb and liquid Bureau of Standards calibration or test changes in emf charged dependent color temperature condenser microphones current fees decibels Determination diameter Electric electrode electromotive force end of table errors exceeding footnote at end frequency Gage blocks gages-determination glass Group of Standard higher or lower hygrometers ice-point reading indications inductors instruments Invar Item Description Fee laboratory length liquid column mass measurements meter National Reference Group ohms perature phase angle plug Precision pressure Radium ratio reference standards REPORT OF CALIBRATION resistance thermometer resistors ring gages sample saturated standard cells schedule special tests specifications spectrophotometer stability standard resistors submitted for calibration tabulated corrections apply temperature range test points test_ tests not covered thermal conductivity thermocouple thermometer was tested U.S. DEPARTMENT uncertainty voltage dividers waveguide weights
Popular passages
Page 11 - Standard Reference Materials issued by the National Bureau of Standards to calibrate a measurement system, or to produce scientific data that can be referred to a common base. A schedule of prices and amounts, as well as directions for ordering, is included.
Page 49 - ... index markers. Since it is necessary to determine the shift of the principal point resulting from prism effect in the lens, the equivalent focal length of the lens as mounted In the camera is incidentally determined...
Page 55 - ... wire loops, spring balances, tension handles, or other attachments liable to be detached or changed in shape. The error in the total length of the tape, when supported horizontally throughout its length at the standard temperature of 68° F. (20° C.) and at standard tension, shall not be more than 0.1 inch per 100 feet (2 mm per 25 m).