| No. |
ISO
10360 Requirement |
Realization
by KOBA-step® |
| 1 |
Demand for an artifact |
One dimensional test standard,
each gage face is arranged along the line of measurement |
| 2 |
Traceability to National Standard |
Can be calibrated; PTB and KDK
calibration available |
| 3 |
Two or more parallel faces |
Large number of plane parallel
gage faces along the line of measurement |
| 4 |
Shortest measuring length <
30mm |
20mm distances as a standard |
| 5 |
Measuring range about 2/3 of the
volumetric diagonal |
Various lengths up to 2500mm |
| 6 |
Uncertainty of measurement of the
standard less then 20% of E |
Smallest possible uncertainty of
measurement for calibration: U = 0.2µm + 0.5 * 10-6 * L |
| 7 |
Seven positions of the standard
in the measuring volume |
Positioning guaranteed by
multi-purpose accessories |
| 8 |
Minimum of five measuring lengths
in every position |
Guaranteed by division of 20mm
even at smallest nominal length |
| 9 |
Evaluation of the measuring
results |
Simple manual evaluation,
software available (according to VDO 2617) |
| 10 |
Stability of the test standard |
Stable U-shaped cross section,
the line of measurement is situated on the neutral fiber of the body |
| 11 |
Coefficient of thermal expansion |
Coefficient of thermal expansion
is known:
(11.3 * 10-6 °K-1) |
| 12 |
Long-term stability |
No structural changes, very high
mechanical strength |
| 13 |
Simple geometric probing elements |
Flat and parallel measuring faces
along the measuring line |
| 14 |
Equal distribution of the probing
elements over the length |
Constant steps over the measuring
length |
