This document specifies a method for the determination of potassium in water using atomic absorption spectrometry. It is part of a series of standards for the analysis of sodium and potassium levels in various types of water samples. The method described includes detailed procedures for sample preparation, calibration, measurement, and data interpretation. This standard aims to provide reliable and consistent results across different laboratories by adhering to internationally recognized practices as outlined in ISO 9964-2.
*** Please note: This description may not be accurate, please refer to the official documentation.