water+quality


 * alkalinity** or AT is a measure of the ability of a solution to neutralize acids to the [|equivalence point] of carbonate or bicarbonate.
 * ph** is a measure of the [|acidity] or [|basicity] of [|solution].
 * calcium**.Calcium is essential for living [|organisms], particularly in [|cell] [|physiology], where movement of the calcium ion Ca2+ into and out of the [|cytoplasm] functions as a signal for many cellular processes.I prefer to purchase my test kits separately as most master test kits duplicate test I do not need (high range and low range ph) and leave out ones I need such as kH and GH, or possibly Phosphateand Calcium, or Redox.