part per trillion

part per trillion
(ppt)
   a unit of proportion equal to 10-12.

Dictionary of units of measurement. 2015.

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  • Parts per trillion — Einheit Norm Hilfsmaßeinheit Einheitenname parts per million Einheitenzeichen ppm Beschriebene Größe(n) Verhältnis Größensym …   Deutsch Wikipedia

  • Parts-per notation — One part per trillion (1 ppt) is a proportion equivalent to one twentieth of a drop of water diluted into an Olympic size swimming pool. In science and engineering, the parts per notation is a set of pseudo units to describe small values of… …   Wikipedia

  • trillion floating point operations per second — noun (computer science) a unit for measuring the speed of a computer system • Syn: ↑teraflop • Topics: ↑computer science, ↑computing • Hypernyms: ↑unit of measurement, ↑ …   Useful english dictionary

  • Parts per million — Einheit Norm Hilfsmaßeinheit Einheitenname parts per million Einheitenzeichen ppm Beschriebene Größe(n) Verhältnis Größensym …   Deutsch Wikipedia

  • Parts per quadrillion — Einheit Norm Hilfsmaßeinheit Einheitenname parts per million Einheitenzeichen ppm Beschriebene Größe(n) Verhältnis Größensym …   Deutsch Wikipedia

  • parts per million — Einheit Norm Hilfsmaßeinheit Einheitenname parts per million Einheitenzeichen ppm Beschriebene Größe(n) Verhältnis Größensymbol(e) …   Deutsch Wikipedia

  • million floating point operations per second — noun (computer science) a unit for measuring the speed of a computer system • Syn: ↑megaflop, ↑MFLOP • Topics: ↑computer science, ↑computing • Hypernyms: ↑unit of meas …   Useful english dictionary

  • spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …   Universalium

  • ppb —    , ppm, ppq, ppt, pptr    abbreviations for units of proportion: ppb = part per billion (10 9), ppm = part per million (10 6), ppq = part per quadrillion (10 15), and ppt = part per trillion (10 12), respectively. However, the abbreviation ppt… …   Dictionary of units of measurement

  • Protactinium — thorium ← protactinium → uranium Pr ↑ Pa ↓ …   Wikipedia

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