The International Organization for Standardization (ISO) has published IEC 60086-3:2016 Primary batteries -- Part 3: Watch Batteries as an International Standard.
The standard provides the dimensions, designation, methods of tests and requirements for primary batteries for watches. This is the fourth version of the standard and includes:
- Harmonization of the cell sizes and service output tests with IEC 60086-2
- Clarification of:
- Clause 6: Sampling and Quality Assurance
- Clause 7: Test methods
- Clause 8: Visual examination and acceptance condition
- Harmonization of temperature and humidity conditions with IEC 60086-1
The standard is published as of August 26, 2016.