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It means Parts Per Million. It is generally used to measure and denote the concentration of chemical in very low quantity. e.g we say the sea water contains 0.5 ppm of pure gold. Or human blood contains 20 ppm of iron oxide.

This unit is used when other units like % and fractions are too big to denote the quantity.

Percent is one part in hundred. So you can now understand what is a part per million.

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ppm in this context probably means parts per million. This is the concentration of a chemical or element in something like food or drink.

for example 8 milligrams of Mercury in 100 grams of fish would result in a mercury concentration of 0.8 ppm (parts per million)

Parts per million

ppm

parts per million

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Portable Pixmap. This is a common image format used in Unix systems due to the simplicity of the format. The format is as follows:

P6

Where width, height, and maxval are in ASCII decimal for the width, height, and maximum sample value of the image, respectively. The header portion can also include human-readable comments by using the # character followed by a comment. The image data is just a bunch of uncompressed bytes containing the red, green, and blue sample values of each pixel. There are similar formats called Portable Greymap (PGM) and Portable Bitmap (PBM), and they are defined and treated similarly.

There are many tools for transforming and converting files of these types to other formats. Search for Netpbm for more information.

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Parts Per Million if in a Scientific context?

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That is "parts per million"

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Related questions

What is the full form of PPM?

PPM is an acronym for parts per million, a term for quantifying small concentrations of substance in gases, liquids, or solids.


What is the full form of ppm in gas?

Parts per million (ppm) in gas refers to the measurement of concentration of a particular gas in the air. It represents the ratio of the volume of the gas to the total volume of the air, expressed in parts per million.


What is 70 ppm in percentage form?

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What is PPM in full?

PPM stands for "parts per million". It is a unit of concentration that denotes the number of parts of a substance per million parts of a solution. It is commonly used in fields such as chemistry and environmental science to express low concentrations of substances.


Is 100 ppm better or worse then 50 ppm?

100 ppm is worse than 50 ppm. The higher the ppm value, the more concentrated the substance is in the solution. In this case, a concentration of 100 ppm is twice as much as 50 ppm.


How you write ppm capital or small?

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