IEC 60751: 2008 has been updated. from 2022-01-31, the current edition is called IEC 60751: 2022.
The biggest changes are:
- The numerical table for the relationship between temperature and resistance is replaced by a formula
- New item “Compliance and requirement” has been added
- Tolerance acceptance test has been updated
An updated labeling system is introduced to adapt to a specific temperature range
- The method for vibration tests has been revised
- The methods for type tests have been expanded with “Cold seal”
- The numerical table is now in Annex A
The above points do not affect practical temperature measurements with resistance thermometers.