INTRODUCTION

This chapter provides information on how to apply electrical conductivity measurements (hereafter referred to as “conductivity”) of fluid solutions, including pure fluids. ^◆This chapter does not replace the official Water Conductivity 〈645〉 procedure, which is used to ensure the ionic purity of compendial waters such as Water for Injection, Purified Water, Pure Steam condensate, and Sterile Water for Injection, among others._◆ This chapter is intended for ^◆other_◆ fluid applications when conductivity is used to measure, monitor, or control chemical dispensing, chemical purity, ionic concentration, and other applications where the ionic character of the fluid needs to be known or controlled.