Fluke
Fluke ITS-90 Fixed-Point Cells
Manufacturer: Fluke Calibration
Model: ITS-90
Features
- Best cell uncertainties commercially available
- Every ITS-90 fixed point available from argon to copper
- Plateaus last days (gallium for weeks and TPW for months)
- Manufactured and tested by Fluke Calibration’s primary standards scientists
Specifications
| Model | Fixed Point | Style | Assigned Value (°C) | Outside Diameter | Inside Diameter | Total Outside Cell Height | Depth‡ | Cell Uncertainty (mK, k=2) | Certification (mK, k=2)† |
|---|---|---|---|---|---|---|---|---|---|
| 5900E | Mercury | Stainless Steel | –38.8344 | 31 mm | 8.2 mm | 470 mm | 200 mm | 0.2 | 0.25 |
| 5904 | Indium | Traditional Quartz Glass | 156.5985 | 48 mm | 8 mm | 285 mm | 195 mm | 0.7 | 0.7 |
| 5905 | Tin | Traditional Quartz Glass | 231.928 | 48 mm | 8 mm | 285 mm | 195 mm | 0.5 | 0.8 |
| 5906 | Zinc | Traditional Quartz Glass | 419.527 | 48 mm | 8 mm | 285 mm | 195 mm | 0.9 | 1.0 |
| 5907 | Aluminum | Traditional Quartz Glass | 660.323 | 48 mm | 8 mm | 285 mm | 195 mm | 1.3 | 1.8 |
| 5908 | Silver | Traditional Quartz Glass | 961.78 | 48 mm | 8 mm | 285 mm | 195 mm | 2.4 | 4.5 |
| 5909 | Copper | Traditional Quartz Glass | 1084.62 | 48 mm | 8 mm | 285 mm | 195 mm | 10.1 | 12.0 |
| 5924 | Indium | Open Quartz Glass | 156.5985 | 50 mm | 8 mm | 596 mm | 195 mm | 0.7 | 0.7 |
| 5925 | Tin | Open Quartz Glass | 231.928 | 50 mm | 8 mm | 596 mm | 195 mm | 0.5 | 0.8 |
| 5926 | Zinc | Open Quartz Glass | 419.527 | 50 mm | 8 mm | 596 mm | 195 mm | 0.9 | 1.0 |
| 5927A-L | Aluminum | Open Quartz Glass (long) | 660.323 | 50 mm | 8 mm | 696 mm | 195 mm | 1.3 | 1.8 |
| 5927A-S | Aluminum | Open Quartz Glass (short) | 660.323 | 50 mm | 8 mm | 596 mm | 195 mm | 1.3 | 1.8 |
| 5928 | Silver | Open Quartz Glass | 961.78 | 50 mm | 8 mm | 696 mm | 195 mm | 2.4 | 4.5 |
| 5929 | Copper | Open Quartz Glass | 1084.62 | 50 mm | 8 mm | 696 mm | 195 mm | 10 | 12.0 |
| 5943 | Gallium | Stainless Steel | 29.7646 | 38.1 mm | 8.2 mm | 250 mm | 168 mm | 0.1 | 0.1 |
