| General Electric procedure for applying platinum electroplate to Alumel and Chromel parts to achieve a heat resistant finish | GE-F70J-WB2 | |
| Designation | Description | |
| F70J-WB2A | .00015 inch minimum | |
| F70J-WB2B | .00015 inch minimum | |
| F70J-WB2C | .00020 inch minimum | |
| F70J-WB2D | .00015 inch minimum | |
| F70J-WB2E | .00020 inch minimum | |