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  1. Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages.

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  2. Comparing these two unit definitions shows that ppm is 1000 times greater than ppb (1 ppm = 10 3 ppb). Thus: 15ppb × 1ppm 103ppb = 0.015ppm 15 p p b × 1 p p m 10 3 p p b = 0.015 p p m. The definition of the ppb unit may be used to calculate the requested mass if the mass of the solution is provided. Since the volume of solution (300 mL) is ...

  3. Feb 22, 2023 · PPM stands for “Parts Per Million,” while PPB stands for “Parts Per Billion.” In both cases, the concentration is expressed in terms of the number of parts of a substance per one million or one billion parts of a sample. In many fields, including industry, health care, and environmental science, the topic of concentration is crucial ...

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  4. One part per billion is one part of solute per one billion parts solvent. PPB is a commonly used unit of concentration for very small values. The "parts per" notation is not part of the SI system of units. The notation describes dimensionless quantities. The ppb notation is most often seen in physics and engineering.

  5. Parts Per Million (ppm) and Parts Per Billion (ppb) - Solution Concentration

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  7. Definition: A weight to weight ratio used to describe concentrations. Parts per billion (ppb) is the number of units of mass of a contaminant per 1000 million units of total mass. Also µg/L or micrograms per liter. Source: GreenFacts. More: ppb (or ppbm) is used to measure the concentration of a contaminant in soils and sediments.