AASHTO Designation: R 33-03 (2008) pdf free download

Standard  Recommended   Practice  for

Calibrating  the  Reference  Load  Cell Used

for Reference Calibrations for Falling  Weight Deflectometer

AASHTO  Designation: R 33-03 (2008)1


AASHTO Designation: R 33-03 (2008) pdf free download

1.1.The reference load cell is a precision instrument that requires regular and thorough calibration.

1.2.It is essential that the reference load cell be calibrated using a testing machine that is properly maintained and accurately calibrated.

1.3.The reference load cell and its cable and the associated signal conditioner are considered a system

of instruments which are to be calibrated together and used together.

1.4.This practice may involve hazardous materials, operations, and equipment.

It does not purport to address all of the safety concerns associated with its use.

It is the responsibility of the user of this practice to consult and establish appropriate safety and health practices and determine the applicability of regulatory

limitations prior to use.


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