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| | | Mexico, CENAM (Centro Nacional de Metrologia) | | | Complete CMCs in Length for Mexico (.PDF file)
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| Surface texture. Groove or step-height standard: step height, H, 0.03 µm to 10 µm | | Absolute expanded uncertainty (k = 2, level of confidence 95%) in nm: (15 + 2.7H), H in µm, ranges from 15 nm to 42 nm | | 2-D profile stylus instrument | | Approved on 14 June 2004 | | Internal NMI service identifier: CENAM/32 |
| | | Surface texture. Roughness standard: roughness parameter, 0.01 µm to 20 µm | | Absolute expanded uncertainty (k = 2, level of confidence 95%) in nm: (10 + 18P), P in µm, ranges from 10 nm to 370 nm | | 2-D profile stylus instrument | | Roughness parameter P: Ra, Rz, Rmax | | Approved on 14 June 2004 | | Internal NMI service identifier: CENAM/33 |
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