TB 9-5210-205-40
IDENTIFICATION AND DESCRIPTION
1. Test Instrument identification.
This bulletin provides instructions for the
calibration of Gage Blocks, Grades 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.
Table 1. Calibration Description
DEVIATION FROM FLATNESS TOLERANCE tf
Deviation from flatness tolerance tf in m (in.)
Nominal length
Style and grade
range for ln
AS-1
AS-2
All styles
All styles
former grade 3
0.5 mm up to 50 mm
0.15
0.25
0.010 in. up to 2 in.
(6)
(10)
50 mm up to 150 mm
0.15
0.25
2 in. up to 6 in.
(6)
(10)
Over 150 mm up to 500 mm
0.18
0.25
Over 6 in. up to 20 in.
(7)
(10)
