This category encompasses specialized chemical laboratory equipment designed for chemical analysis, material evaluation, and quality control in manufacturing industries. It includes professional instruments necessary for measuring chemical properties and conducting chemical reactions, such as distillation apparatus, reactors, electric furnaces, constant temperature baths, pH meters, titration equipment, spectrophotometers, and chromatography systems. The equipment is used for raw material analysis at manufacturing sites, chemical quality inspection of products, and chemical experiments in new material development, clearly distinguished from physical testing equipment and biological laboratory instruments. This category also includes apparatus capable of measurements compliant with JIS K standards and ASTM chemical testing standards.