blocks.
(12) Compute parallelism as follows:
(a) Compute difference between entries made on calibration
worksheets under parallelism observations; give strict attention
to signs.
(b) Enter appropriate value obtained in (a) above as crosswise
error in parallelism.
This is total parallelism error and
requires no sign.
(c) Enter appropriate value obtained in (a) above as lengthwise
error in parallelism.
This is total parallelism error and
requires no sign.
C.
Final Procedure
(1) Transfer individual block identification and size deviation
on two typed copies of calibration worksheets. One copy will be
maintained by the calibration facility and one will packaged with
the TI.
(2) Record data on typed copies of worksheets for individual
blocks that exceed the applicable flatness and parallelism
tolerance. Add all pertinent information.
(3) Submit typed worksheets ready for signature.
(4) Preserve TI as follows:
(a) Wipe each TI with clean cloth and apply thin coat of oil.
Be sure ALL surfaces are coated.
(b) Wrap and seal TI as described in (1) through (4) below:
1.
Select appropriate size tubing and cut length of tubing
long enough to completely sheath TI.
2.
Seal one end of tubing before inserting TI.
3.
Insert TI in tubing and seal close to TI with heat sealer.
4.
Remove excess overhang to about 1/16 inch from seal line to
minimize bulkiness.
Check seams for adherence, to assure
effective sealing.
5.
Insert TI in appropriate place in carrying case.
Use
cushioning material to protect TI's as required.
(a) Place smooth side of barrier material directly on top of TI
in opened case.
(b) Package calibration worksheets in suitable envelope and
place in clear polyethylene.
(c) Place calibration worksheets on top of barrier material.
(d) Place the following notice conspicuously on inside lid of
storage box.
Note: The polyethylene protective cover on a gage block is a
control measure.
Break seal on protective cover only on those
gage blocks which are required to perform on operation or
measurement.
Do not break seals on any gage block unless
absolutely necessary.
(e) Close lid and make sure that clasps are secure.
(f) Bind the closed case with tape to prevent case from coming
open during transit.
(6) When all steps have been completed, annotate and affix U.
S. Army Calibrated Instrument Label, DA Label 80 to carrying case
84
Previous Page
