Liquid Metering The unit of measurement used for calculating colloidal silver content is known as Total Dissolved Solids. This is known as TDS in its abbreviated form and it is used to measure the concentration of substances that can be found in the water base.The fact that colloidal silver is a suspension and not an actual dissolved solid poses difficulty when it comes to measuring the substance.Basically a colloid is a particle suspended in a liquid medium. In this particular case the particle being referred to is silver with a liquid medium of water.The effectiveness of meter mix dispenserTDS meters are not completely effective when it comes to giving an accurate count of silver colloids present in the substance. Rather they work more accurately in terms of measuring the purity of the water.You will find many of the leading TDS producers to attest to this limitation of liquid metering. However these meters are still widely used for calculating silver colloidal count.The leading manufacturers concur that chemical dispenser are not the perfect tools for measuring the colloid count. On the contrary this is a perfect tool for measuring the impurities present in your distilled water.In spite of the fact that TDS meters do not have the ability to provide an accurate colloid count they continue to get promoted on the internet for the same purpose.In order to get a 100% accurate ppm you will be required to send your colloidal silver sample to a laboratory which is well equipped to analyze the CS.However this would not be feasible with regards to the time and money that you will have to spend. This is the reason why you find most people will just stick with using TDS meters despite their inaccuracy.The TDS meter will display the colloid count in ppm TDS in a written form. This relatively accurate count will be good enough when making use of the substance for basic purposes.