Regular verification of measuring devices is essential to ensure valid results and maintain quality. Routine calibration and preventative maintenance of moisture analyzers should be performed by a qualified service engineer, but additional performance testing between service intervals gives an analyst assurance and confidence that their measurements are consistently correct. This white paper describes the benefits of a fast and convenient interim performance test using SmartCal™ - an ideal test substance for moisture analyzers. This white paper will be of interest to quality and laboratory managers who are responsible for moisture analysis, in industries such as food, chemicals and pharmaceuticals.