Chemical products for the treatment of drinking water, namely chromatographic adsorbents; Chemical preparations for use in water purification for use in industry

Scientific electrical and electronic appliances and instruments for sensor technology, namely, instruments for measuring gas, sensors for detecting and analyzing gases, optoelectronic measuring instruments, appliances for the early detection of leaks in natural gas pipelines, appliances for controlling biogas plants, appliances and sensors for measuring room air quality and controlling ventilation systems, appliances for measuring and monitoring the biodegradability of plastics materials, app...