We supply ISO 17025 and ISO 17034 accredited Conductivity Reference Standards Paragon. These solutions help you calibrate and verify various conductivity meters. Conductivity analysis measures a liquid’s ability to pass electrical current (μS/cm). Paragon provides these precision standards in ranges from 2 to 500,000 μS/cm. The manufacturer bases their measurement method on strict ASTM D1125 standards. This specific standard tests the electrical conductivity and resistivity of water. However, you can confidently apply these fluids to most general conductivity applications.