What is the meaning of ppm?

(Military) ppm stands for parts per million
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
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APAMilitary Dictionary (DoD). (2011). ppm. Retrieved September 28, 2026, from http://smartdefine.org/ppm/definitions/1963395
ChicagoMilitary Dictionary (DoD). 2011. "ppm" http://smartdefine.org/ppm/definitions/1963395 (accessed September 28, 2026).
HarvardMilitary Dictionary (DoD) 2011, ppm, Smart Define, viewed 28 September, 2026, <http://smartdefine.org/ppm/definitions/1963395>.
MLAMilitary Dictionary (DoD). "ppm" 4 April 2011. Web. 28 September 2026. <http://smartdefine.org/ppm/definitions/1963395>
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