GB/T 321-1980
Replaced
T/HBJLXH 006-2023
Active
Group standards
\nCalibration Method for Ball Compression Testing Instrument T/HBJLXH 006-2023
T/HBJLXH 006-2023
Price:
$ 20.00
Basic Information
Standard Code:
T/HBJLXH 006-2023
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
Integrated Metrology and Measurement
Publish Date:
2023-02-08
Implement Date:
2023-03-07
Scope
Main technical content: 4 Measurement characteristics 4.1 Total test pressure: (20 ± 0.2) N 4.2 Steel ball diameter: (5 ± 0.03) mm 4.3 Sample holder: diameter (50 ± 0.2) mm; height (100 ± 0.2) mm 6 Calibration items and methods 6.1 Appearance The instrument should have a nameplate, manufacturer's name, model number, factory serial number and date, and a certificate of conformity, etc. 6.2 Calibration of total test pressure Use an electronic balance to measure the ball compression tester, read the value displayed by the electronic balance, and repeat the measurement three times to obtain the average value M as the measurement result. Calculate the pressure value according to Formula (1): F = M × g where: F — Total test pressure of the ball compression tester, N; M — Average value of the ball compression tester's mass, g; g — Local gravity acceleration, m/s2. 6.3 Calibration of steel ball diameter Use an outside micrometer to measure the diameter of the steel ball every 120°, and measure it three times in total. Take the average value as the measurement result of the steel ball diameter. 6.4 Calibration of sample holder diameter and height Use a vernier caliper to measure the diameter and height of the sample holder. Measure each parameter every 120°, and measure it three times in total. Take the average value as the measurement result of the sample holder's diameter and height.