| 摘要 |
1,270,634. Purifying water. LABORATORIUM FUR ADSORPTIONSTECHNIK G.m.b.H. 23 March, 1970 [26 March, 1969], No. 14004/70. Heading C1C. Drinking water is produced from disinfectantfree water by filtering the latter through activated carbon at a specific charge of less than 4 hour<SP>-1</SP> and adding at least 0À05 milligram of chlorine, ozone or chlorine dioxide to the thus filtered water. |
