Is Gh The Same As Tds?

[FcF]

is gh the same as tds?
do they measure the same stuff from the water?
thanks!

 

[The-Wolf]

TDS; total dissolved solids
the sum or all inorganic and organic particulate material. TDS is an indicator test used for wastewater analysis and is also a measure of the mineral content of bottled water and groundwater. There is a relationship between TDS and conductivity.

GH;General Hardness (also referred to as Total Hardness). A measurement of the amount of magnesium and calcium dissolved in water

Edited for Bold

 

[FcF]

thanks again The-Wolf.