At this moment there are no hydraulic piping stand- ards available which cover different pressure classes and piping materials as well as being gener- ally suited for all applications.
A high concentration simply means there is a high percentage of solute particles dissolved in the solvent and the solution is said to be concentrated. And a low concentration means there is not a high percentage of solute particles in the solvent and the solution is said to be diluted. high concentration of something, like a hormone in the blood, means there is a lot of it. A low concentration of something means there is not a lot of it, but a little.
474 pages on this wiki. Diffusion is the net movement of a substance from an area of high concentration to an area of low concentration.This difference in concentration is called the concentration gradient. Concentration gradient-A greater concentration gradient will mean the rate of diffusion increases. 2  This concentration gradient is kept large by removing the substance as it moves across the place where it diffuses.