Calibration is performed by laser interferometric method an accuracy 0.000 001 mm.
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Traceability chain for SI units
Traceability
chain for
longitude measurement with laserinterferometer
Traceability chain for
goniometer |
Calibration of longitude measures: Labor input of calibration -»
| Object of calibration | Measuring range | Inaccuracy | Note |
| Leveling lath | 3000 mm | ± 0,01 mm | |
| Ruler | 3000 mm | 0,01 mm | |
| Measuring tape | 100 m | d =± (0,1+0,1*L) | d in [mm], L in [m] |
| Gauge blocks | 1000 mm | d =± (0,2+0,2*L) | d in [mm], L in [m] |
| Dial indicators | i.c. 0; 1 and 2 | ||
| Level dial indicators | i.c. 1 a 2 | ||
| Micrometer | 3000 mm | i.c. 1 a 2 | |
| Two-points inside micrometers | 2585 mm | d.s. > 0,0005 mm | |
| Dial snap Gauges | 150 mm | i.c. 1; 2 a 3 | |
| Calipers | 3000 mm | d.s. > 0,01 mm | |
| Vernier height gauges | 3000 mm | ||
| Caliber for outsides measurement | 3000 mm | ||
| Caliber for insides measurement | 2850 mm | ||
| Thread calibre | |||
| Bevel protractor | |||
| Gauging wires | |||
| Gauging rolls | |||
| Steel ruler | i.c. 1 a 2 | ||
| Steel measuring-tape i.c. EG I | d =± (0,1+0,1*L) | d in [mm], L in [m] | |
| Weldsgauge | |||
| Spirit level | from 4" or 0,02 mm/m | I.b |
Calibration of tachometer’s measures:
| Object of calibration | Measuring range | Inaccuracy |
| Mechanic tachometer | to 50 000 min-1 | from 0,1 % |
| Electronic tachometer | to 106 min-1 | td 0,01% |
Advising for:
1) Metrologies systems by
STN EN ISO/IEC 17 025: 2005
2) Quality systems by ISO 9000 standards
Accreditation
of
calibration laboratory
by Cesky
institut pro akreditaci, o. p. s.