Hellma Certified Reference Material for calibration
Analytical measurements require standards to provide the benchmark of comparison for experiments. Certified reference materials of CRM are used for this purpose. Most analytical experiments are based on comparative analysis of data for calibration and inference. Certified reference materials are produced under very strict manufacturing conditions, so the quality is assured, and they can be used as a certification of reference for experiments involving similar factors. Different types of reference materials are available, including pure substances, standard solutions like gas mixtures, materials for reference of melting point, boiling point etc and for functional property comparisons. The specific nature of the experiment determines which of these types are ideally suited for use in this setting.