What is the full form of the abbreviation called PPM?

What is the full form of the abbreviation called PPM? Correct Answer Parts Per Million

The correct full form of the PPM abbreviation is Parts per million. It is a way of measuring the concentration of a particular gas in the air, by using the ratio of it and comparing it to others. For example: 1000 PPM of LPG means that if you count 1 million gas molecules within a closed space, 1000 of them would be LPG molecules while the rest would be other gases.

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