It seems like you're referring to the term "International Volt" in the context of measurement and instrumentation. However, as of my last knowledge update in September 2021, there's no specific unit or term known as the "International Volt." It's possible that there might have been developments or changes in the field of measurement and instrumentation since then.
In the realm of measurement and instrumentation, the volt is a standard unit of electrical potential difference or electromotive force. It's used to quantify the amount of electrical potential energy between two points in an electrical circuit. The volt is part of the International System of Units (SI) and is represented by the symbol "V."
If "International Volt" is a term or unit that has emerged after my last update, I recommend consulting more recent and specialized sources related to measurement and instrumentation to get accurate and up-to-date information.