Electrical propertiesUltrapure I fully appreciate the edits to correct my atroicous  spelling and formatting to a recent edit I made but I do think one part should remain the same The sectin in question was changed to  It is known that the theoretical maximum electrical resistivity for water is approximately  kilohmmeters at  degrees Celsius This figure agrees well with what is typically seen on reverse osmosis ultrafiltered and deionized ultrapure water systems used for instance in semiconductor manufacturing plants A salt or acid contaminant level exceeding that of even  parts per trillion ppt in ultrapure water will begin to noticably raise its conductivity level by up to several hundred kilosiemens per meter  Now I know wikipedia must conform to standards a policy which I am an ardent advocate of and the meter is the SI unit of length as is the kilohm However ultrapure water is never ever referred to using these units It is always referred to as being  megohmcm and has in fact been so often used with these terms that it has bcome synonymous with them and is often simply called megohm water in the literature So Id like to change this back in the article