Meaning parts per trillion
What does parts per trillion mean? Here you find 3 meanings of the word parts per trillion. You can also add a definition of parts per trillion yourself
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parts per trillionThe concentration of a substance in air, water or soil. A nanogram per kilogram is the same as one part per trillion. One ppt means that there is one part of a substance for every trillion parts of su [..]
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parts per trillionNumber of parts of a chemical found in one trillion parts of a particular gas, liquid or solid. See concentration.
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parts per trillionNumber of parts of a chemical found in one trillion (1012) parts of a particular gas, liquid, or solid mixture. parturition
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