Linked Plant & Electric Terminology & Conversion

Parts Per Million (PPM), Total Dissolved Solids (TDS) & Electrical Conductivity (EC) Measurements

In a loose sense of the term, it is a electric universe. With that being said the ultimate science is Nature/Frequencies, as all of life has a electromagnetic signature, even the minerals we require for good health are electric or electrically conductive. different minerals have different electric conductivity (EC) properties, and with that being said, logically minerals could then be utilized for electric applications, such as batteries, electric cables etc, did you know that even the terminology is interchangeable. Depending on the country mineral measurements are read in 1 of 3 ways ELECTRICAL CONDUCIVITY (EC), TOTAL DISSOLOVED SOLIDS (TDS), OR PARTS PER MILLION (PPM)​. America being the country using the TDS/PPM measurement, most others utilize the Electrical conductive (EC) measurements. The Cannabis plant consists of minerals that are both healthy and electrically charged to the right frequency which is why they are healthy & Conductive, (Note Cannabis also posses (-) Ions Which is again another healthy electric charge.) Ironically to the point that Cannabis is a Supercapacitor batteries.
(-)Ions Check out www.times changing global.com also under home in the menu bar.
​Here is a little on terminology and conversions of  TDS/PPM  &  EC 

​The discussion about EC and TDS has been an ongoing issue for as long as I can remember. The two measurements are used to determine the strength of Hydroponic nutrient solution. Although they are widely used they should only be used as a guideline and you should always follow mixing instructions on the label of you nutrient to start with.

EC stands for Electrical Conductivity and is measured in mS/cm or miliSiemens per centimeter.
TDS stands for Total Dissolved Solids and is measured in ppm or parts per million.

Taking the EC value and performing a math function to determine the TDS value calculate TDS. TDS as a calculation it is really only a guess (but a good close guess) at what the nutrient concentration is. There are three different conversion factors that can be used to determine TDS. Different manufacturers use different conversion factors and that is where the confusion starts. In other words you could test the same solution with two different meters and get two different readings. But the EC is read the same by all meters the only difference is the conversion factor. That does not mean EC is the best either it just means that TDS is more of a math formula.

There is the 442 conversion (40% sodium sulfate, 40% sodium bicarbonate, and 20% sodium chloride) which some say is the closest thing to a Hydroponic solution. The 442 conversion is approximately 700 x EC in miliSiemens (mS). Then there is the NaCl conversion (sodium chloride) which others say is the closest thing to a Hydroponic solution. The NaCl conversion is approximately 500 x EC in miliSiemens (mS).

So, if you do not calibrate your meter using the correct calibration solution your meter could give you a very inaccurate reading.

Electrical Conductivity (EC) Parts Per Million (PPM)
miliSiemens (mS) microSiemens (mS) NaCl Conversion 442 Conversion
1.0 1000 = 500 ppm 700 ppm
1.5 1500 = 750 ppm 1050 ppm
2.0 2000 = 1000 ppm 1400 ppm
2.5 2500 = 1250 ppm 1750 ppm
3.0 3000 = 1500 ppm 2100 ppm

There is a direct correlation between EC & TDS EC is used more by the rest of the world and TDS is mostly used in America. You get more of a range using TDS over EC but that’s about it. Nutrient manufactures mostly display their nutrients in terms of PPM and that is a TDS measurement. I guess you can blame them for all the confusion.