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Calibration of Line Standards of Length and Measuring Tapes at the National Bureau of Standards

Description: From Abstract: "The methods used at the National Bureau of Standards in calibrating line standards of length and measuring tapes submitted for standardization are outlined. The equipment used is described briefly. There is a discussion of some considerations that should be given as to whether or not a standard should be submitted to the Bureau."
Date: May 20, 1960
Creator: Judson, Lewis V.
Item Type: Refine your search to only Report
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Mercury Barometers and Manometers

Description: From Abstract: "Sources of error in measuring pressures are described in considerable detail, particularly for portable instruments including scale, temperature , gravity, capillarity, vacuum errors and return gas column. Methods of minimizing those errors and of making the corrections, including extensive tables, are presented."
Date: May 20, 1960
Creator: Brombacher, W. G.; Johnson, D. P. & Cross, J. L.
Item Type: Refine your search to only Report
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