It depends on for what purpose.
The correct unit for alkalinity is usually expressed in milligrams per liter (mg/L) or parts per million (ppm) of calcium carbonate (CaCO3) equivalent.
PPM stands for parts per million, which is a unit of measurement used to express the concentration of a substance in a solution. When adding chemicals to a swimming pool, the recommended levels for chlorine, pH, alkalinity, and other parameters are often expressed in parts per million to ensure proper water balance and sanitation.
If you have 1 million parts of something 10 parts would be 10 parts per million. If you had 2 million parts of something 20 parts would be 10 parts per million.
parts per million = ppm
-- take the number of parts per thousand-- multiply it by 1,000-- the answer is the number of parts per million
There are one million milligrams in one liter. 4.8 milligrams is 4.8 parts per million (parts per million) There are one million milligrams in one liter. 4.8 milligrams is 4.8 parts per million (parts per million)
Nickel is an element. Therefore, in any nickel item it is 1 billion parts per 1 billion or 1 million parts per million.
1% is 10,000 parts per million.
More Parts per Million was created in 2004.
Parts per Million and Parts per Billion. Parts of a solute per Million parts of the Solvent.
Pounds per gallon do not convert into parts per million since different types of substances would have a different weight per gallon for the same amount of parts per million. For example, 1000 parts per million of mercury weighs more than 1000 parts per million of oxygen.
A good parts per million (ppm) level for water quality is typically below 500 ppm. This level ensures that the water is safe for drinking and other uses.