近来临床使用新的消毒剂一威力碘,其杀菌能力比氯类消毒剂强3～6倍,它的浓度规格含有效碘0.5％或0.3％,一般说明书和文献都用ppm表示。例如:肝炎病毒250ppm浸泡5min全部杀灭,医疗器械也需要250ppm,餐具需要100ppm,如何稀释呢? ppm是指在一百万份的溶液中,所含溶质的份数来表示的浓度,也就是百万分之几就叫几个ppm。因此0.5％即5000ppm,0.3％即3000ppm。如果需要250ppm的溶液1000ml用5000ppm溶液多 Recently a new clinical use of a powerful iodine disinfectant, its bactericidal ability than chlorine disinfectant 3 to 6 times its concentration specifications containing valid 0.5% iodine or 0.3%, the general instructions and documentation are expressed in ppm. For example: Hepatitis virus 250ppm immersion 5min all kill, medical equipment also need 250ppm, tableware needs 100ppm, how to dilute it? Ppm refers to the concentration of solute contained in one million parts of the solution, that is, A few parts per million is called a few ppm. Therefore, 0.5% is 5000 ppm and 0.3% is 3000 ppm. If you need 250ppm solution 1000ml 5000ppm solution with more