TS 11890

TS 11890 is a terminology standard for ion selective electrodes, bringing together the terms and naming conventions used in this electrochemical field. Rather than defining a test procedure, it aims to align the language used around key concepts so that terms such as electrode type, selectivity, response, and calibration are understood consistently in technical documents.

The ion selective electrode concept

Ion selective electrodes are electrochemical sensors that respond to the activity or concentration of a specific ion in solution. The pH electrode is the best-known example, but the same principle can be applied to many other ions. A terminology standard helps keep closely related concepts distinct, such as membrane, reference electrode, potential difference, and selectivity.

How a terminology standard supports common language

• Provides shared naming for related electrode structures.
• Defines core concepts used in electrochemical measurement.
• Supports consistent language in laboratory reports, catalogues, and technical communication.
• Helps distinguish frequently confused ideas such as selectivity and measurement response.

This TSE publication is based on ASTM D 4127:1992 and is a terminology standard. Its value lies in organizing the vocabulary of ion selective electrode technology, not in prescribing a specific test method or performance limit; it helps readers use and interpret the technical language of the field more clearly and consistently.