Calibration plates
Test plates with Certificate of Verification for calibration of refractometers.
Toote variatsioonid
| Refractive Index at 20 °C | Material | Catalog number | PK | Kogus | |
|---|---|---|---|---|---|
| 1.5222 | Special optical glass | 4.694 476 | 1.00 | ||
| 1.45839 | Quartz glass | 4.694 477 | 1.00 |
