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Rubert 501 | Precision Reference Specimen | Type D, Ra = 0.02 µm (0.8 µin), 8 x 0.4 mm random
The Rubert 501 is an ISO 5436-1 type D precision reference specimen with a 8 x 0.4 mm random profile and a roughness value of Ra = 0.02 µm (0.8 µin). It is used for checking and calibrating surface measuring instruments, giving a known random-profile reference. It is offered in two versions: 501E, with a hard nickel-boron top layer, and 501X, without a top layer.
Key features
- ISO 5436-1 type D random profile, 8 x 0.4 mm random
- Ra = 0.02 µm (0.8 µin)
- Electroformed nickel; 501E with hard nickel-boron top layer or 501X without
- UKAS calibration available on request from Rubert's accredited laboratory
- Specifications
| Part Number | 501 |
| Brand | Rubert |
| ISO 5436-1 Type | D |
| Roughness Value | Ra = 0.02 µm (0.8 µin) |
| Profile / Shape | 8 x 0.4 mm random |
| Material | Electroformed nickel |
| Versions | E = with hard nickel-boron top layer; X = without top layer |
| UKAS Calibration | Available from Rubert's UKAS-accredited laboratory on request |
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