210 . Solvent cements for pipes and fi ttings are fl ammable. Extinguish all fl ames or other ignition sources in working or storage areas. . Be sure to work only in a well-ventilated space. . Avoid any contact with all types of solvent cements on eye and skin. Ingestion or intentional inhalation of solvent vapors can be harmful or fatal to your health. . For best results, installation should not be done at the temperature 5oC or lower. . Be sure to use only Asahi AV adhesive. . Apply adhesive equally with proper amount otherwise evaporation of solvent vapors cause attack internal components. . After insertion, surfaces of the pipe and fi tting should be cleaned by rag. . After fi nishing installation of piping, inlet and outlet of piping should be free and open to release evaporation of solvent vapors. . Don’t move the pipe and fi tting just after jointing. Please leave them free from any stress or impact at least 15 minutes after the installation. . Any extraordinary stress must be removed from the pipe and fi tting when they are installed. . The piping must be cured more than 24 hours prior to actual operation. 【Precaution for use】 Cautions . Be sure that the laying depth under concrete is less than 1m. . The surface of the pipe will be whitened slightly after long time service under the working temperature range of 80℃ to 90℃ . This phenomenon does not cause any fail of the performance in mechanically. 【Precaution for use (only C-PVC products)】