Cleanfax, August 2019

Quantification is essential for assessing cleaning effectiveness For example if dust in a carpet exceeds 2gm per square meter 2gm m2 it is generally considered in unsanitary condition On the other hand dusts in a range of 0 to 15ug per cubic meter 0 15ug m3 of air suggest an acceptable or sanitary environment Energy and force Energy is a requirement for cleaning Energy is the capacity to move matter a substance with mass a known distance Thus energy is the capacity to do work There are different types of energy A few include Potential energy matter in position that is ready to move Gravitational energy the attraction of two objects with known mass and distance apart Kinetic energy matter in motion with a known mass and velocity Heat energy the sum of kinetic energies in which many masses move randomly in all directions Matter is put in motion through the application of force The displacement of matter from a compartment or environment is often brought about through mechanical force Common forms in cleaning include wiping or brushing as well as water flow or air flow Laws of matter and energy There are two fundamental laws of matter and energy The first law states that matter and energy are not destroyed but rather remain constant Matter and energy move around Matter goes to energy and energy goes to matter The second law states that all organized systems seek their most disorganized state This is known as entropy Entropy helps explain why humans will always need effective cleaning Entropy is a measure of how much a system has become disordered The more activity we have the more entropy we have The more objects and activities we have in a space the more complexity we have and the more disorder we have This is also called the Law of Requisite Variety In mathematical terms entropy can be expressed as a formula E n log n where n is the number of things or events in a space What this mathematical model describes is the following If we have no activity or elements in an environment we have no disorder If we have only one activity or element in an environmental space there is no interaction and no disorder When we have two or three activities going on in an environment interactions occur and we create disorder If we have 50 things going on in the same environment we have high disorder This higher disorder is multiplied far beyond direct proportion as the number of events and activities grow FREE INFO Reader Service 220 at Cleanfax com freeinfo AUG 2019 cleanfax com 13