Ppm what does it measure

Contact Dealer Locator. What does PPM mean? Go back to main blog. Volver al blog. Parts per million? A million of what? Parts of what? PPM is the US standard unit of measurement in water chemistry. It tells us the density of a given substance dissolved in water. Examples include free chlorine, calcium hardness, and total alkalinity.

It seems like a tiny amount—and it is—but water does not always need a lot of a given chemical. For example, j ust 1. It may not be enough to keep the pool algae-free, but that's another topic for another article. Where did the million come from? To find out, we did some research which led us to the metric system. One milligram is one-millionth of a liter. The rest of the world already knows this because the metric system is standard and based on multiples of For us Americans, we need to take the time to convert.

By clicking sign up, you agree to receive emails from Safeopedia and agree to our Terms of Use and Privacy Policy. Parts per million PPM is a unit of measurement used when expressing a very dilute concentration level of pollutants in the air, water and other fluids.

For example, 1 PPM of ink in water means that in a million mass units of water there would be one mass unit of ink. Thus, PPM refers to one item in a million of anything of the same size. PPM is commonly used in measuring air, water and body fluids pollution.

PPM is the mass ratio between a component and a solution. Mathematically, 1 PPM can be expressed as following:. Subscribe to the Safeopedia newsletter to stay on top of current industry trends and up-to-date know-how from subject matter authorities. Our comprehensive online resources are dedicated to safety professionals and decision makers like you. By: Daniel Clark. He's written about science for several websites including eHow UK and WiseGeek, mainly covering physics and astronomy.

He was also a science blogger for Elements Behavioral Health's blog network for five years. He studied physics at the Open University and graduated in In words, multiply the percentage value by 10, to get a PPM value. Density to Molarity Conversion.

How to Figure Weight of Lead by Volume. How to Calculate Voidage. Conversion of PPM to Micromoles. Gallons to Kilograms Conversion.