TB 9-5210-205-50
IDENTIFICATION AND DESCRIPTION
1. Test Instrument
identification.
This bulletin provides instructions for the
calibration of Gage Blocks, Grades 0, AS-1, and AS-2. ASME B89.1.9-2002 was used as the
prime data source in compiling these instructions. The equipment being calibrated will be
referred to as the TI (test instrument) throughout this bulletin.
a. Model Variations. Variations among models are described in text.
b. Time and Technique. The time
required for this
calibration is
approximately 20
minutes per block, using the physical technique.
2. Forms,
Records, and
Reports.
Forms, records, and
reports required for calibration
personnel at all levels are prescribed by TB 750-25.
3. Calibration
Description. TI
parameters and
performance specifications which
pertain to this calibration are listed in table 1.
Deviation from flatness tolerance tf1
Deviation from flatness tolerance tf in m (in.)
Style and grade
Nominal length
range for ln
AS-2
AS-1
0
All styles
All styles
All styles
former grade 3
former grade 2
0.5 mm up to 50 mm
0.1
0.15
0.25
0.010 in. up to 2 in.
(4)
(6)
(10)
50 mm up to 150 mm
0.1
0.15
0.25
2 in. up to 6 in.
(4)
(6)
(10)
Over 150 mm up to 500 mm
0.15
0.18
0.25
Over 6 in. up to 20 in.
(6)
(7)
(10)
See footnote at end of table.