NBS Special Publication, Issue 250U.S. Government Printing Office, 1965 |
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Page
... Precision circles_ 202. 411 Linear thermal expansion of solids 202. 412 Gage blocks__ Engineering metrology- 202. 501 End standards of length 65 67 68 69 69 70 70 70 Z22 71 71 72 202. 502 202. 503 202. 504 Plain cylindrical plug and iv ...
... Precision circles_ 202. 411 Linear thermal expansion of solids 202. 412 Gage blocks__ Engineering metrology- 202. 501 End standards of length 65 67 68 69 69 70 70 70 Z22 71 71 72 202. 502 202. 503 202. 504 Plain cylindrical plug and iv ...
Page
202. 502 202. 503 202. 504 Plain cylindrical plug and ring gages . Thread plug and ring gages__ Instruments and components . 202. 505 Optical reference planes__ 202. 506 Angle blocks . 202. 507 Polygons .. 202. 508 Master balls_ 202 ...
202. 502 202. 503 202. 504 Plain cylindrical plug and ring gages . Thread plug and ring gages__ Instruments and components . 202. 505 Optical reference planes__ 202. 506 Angle blocks . 202. 507 Polygons .. 202. 508 Master balls_ 202 ...
Page 4
... the corrections by more than a few units in the last place reported . Calibrations will be made at room temperature , usually 22 to 25 ° C . Item 201.102a Description Precision decade and plug boxes . For 14 Item Fee Description.
... the corrections by more than a few units in the last place reported . Calibrations will be made at room temperature , usually 22 to 25 ° C . Item 201.102a Description Precision decade and plug boxes . For 14 Item Fee Description.
Page 5
Item 201.102a Description Precision decade and plug boxes . For decades not exceeding 10,000 ohms per step . Fe ( 1 ) First point in each box .. ( * ) ( 2 ) Each additional point in same resistance box . ( * ) 201.102b Megohm box , 10 ...
Item 201.102a Description Precision decade and plug boxes . For decades not exceeding 10,000 ohms per step . Fe ( 1 ) First point in each box .. ( * ) ( 2 ) Each additional point in same resistance box . ( * ) 201.102b Megohm box , 10 ...
Page 14
... not affect the corrections by more than a few units in the last place reported . Calibrations will be made at room temperature , usually 22 to 25 ° C . Item Description Fee 201.102a Precision decade and plug boxes . 14 Item Fee Description.
... not affect the corrections by more than a few units in the last place reported . Calibrations will be made at room temperature , usually 22 to 25 ° C . Item Description Fee 201.102a Precision decade and plug boxes . 14 Item Fee Description.
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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).