MikeWs Fish Posted August 4, 2005 Share Posted August 4, 2005 about 80-120 mS What is this referring to? Hardness? Link to comment Share on other sites More sharing options...
anchar Posted August 4, 2005 Share Posted August 4, 2005 Hi Mike, mS refers to micro seimens...it is a unit of measure. Used when determining the conductivity/TDS (total dissolved solids/salts) of a solution. EC is measured in units of micro-siemens per centimetre (µS/cm). Andrea Link to comment Share on other sites More sharing options...
MikeWs Fish Posted August 4, 2005 Author Share Posted August 4, 2005 Thanks very much for this Andrea, So 100mS = how many gH or how many TDS? many thanks, Link to comment Share on other sites More sharing options...
MikeWs Fish Posted August 4, 2005 Author Share Posted August 4, 2005 ahhh I think i have found it 33 microSiemens = 17.9ppm 33microSiemens = 1dH (German ° hardness) 1dH = 17.9ppm Correct me if I'm wrong plz, if you know Link to comment Share on other sites More sharing options...
anchar Posted August 5, 2005 Share Posted August 5, 2005 Link to comment Share on other sites More sharing options...
Brett4Perth Posted August 5, 2005 Share Posted August 5, 2005 Hi MikeW, micro Seimens refers to the amount of current that will pass through the water. (conductivity) The more ions in the water the higher the current/ conductivity. If the principle ions are magnesium and calcium, then there is a close correlation between conductivity (microSiemens) and general hardness. However, water that contains a high proportion of other ions eg. sodium chloride (salt) will have an increased conductivity compared to its "hardness". Conductivity, measured in microSiemens, reflects the concentratin of ions in solution, not just the calcium and magnesium ions that contribute to hardness. Cheers Brett Link to comment Share on other sites More sharing options...
wormboy Posted August 5, 2005 Share Posted August 5, 2005 Just to throw a spanner in the works (as I seem to be prone to do) . Doesn't ms, as a measure of conductivity, need a calibration temperature to be of any use at all as a measure of salinity (which is what I have seen it used for in the past) or hardness? Could the values quoted above be for ms at STP? -worm- (sorry, I always seem to come into the end of a discussion and bugger all the answers up. Not trying to be contentious, just looking for answers ) Link to comment Share on other sites More sharing options...
MikeWs Fish Posted August 6, 2005 Author Share Posted August 6, 2005 interesting. I have read a little on it, very very little. I'm pretty sure sure it had to do with conductivity because the ppm parts per millions refers to metals in the water??? Link to comment Share on other sites More sharing options...
anchar Posted August 6, 2005 Share Posted August 6, 2005 Ions Mike, not metals. Ions are are either positively or negatively charged. Andrea Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.