| ppm |
PPM or ppm is a three letter abbreviation that can stand for:* Parts per million, a measure of concentration* Pages per minute, a measure of speed often used to market printers or photocopiers* the Portable Pixmap file format* the PPM compression algorithm (Prediction by partial matching) used in computer science* Pulse position modulation, a form of data transmission. ...
출처: en.wikipedia.org/wiki/PPM
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| ppm |
parts per million Molecules of a chemical per one million molecules of air.
출처: https://atiam.train.army.mil/soldierPortal/atia/ad...
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| ppm |
parts per million; a measure of concentration.
출처: www.mycolog.com/GLOSSARY.htm
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| ppm |
Abbreviation for "parts per million," sometimes used to express temperature coefficients. For instance, 100 ppm is identical to 0.01%.
출처: www.flw.com/define_p.htm
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| ppm |
Parts (of vapor or gas) per million (parts of air) by volume.
출처: web.mit.edu/environment/ehs/topic/HazCommTerms.htm...
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