Examples of devices that accept both 802.3af and Cisco power: Examples of devices that only accept 802.3af power: The presence of a gigabit Ethernet port on a powered device is a clear indicator that the device is 802.3af only. Because of the relative newness of PoE+, few devices require this level of power.
BHT or butyl hydroxytoluene is a fat soluble synthetic compound which is commonly used to preserve foods and cosmetics to slow down the autoxidation rate of ingredients in a product that can cause changes in the taste or colour.
Phenolphthalein doesn't change color in the presence of an acid, only a base. 2 people found this useful. Edit. Share to: 1  Properties and Uses of the Phenolphthalein indicator Phenolphthalein is a chemical with the formula C20H14O4 and used in several practical applications.2  It will change colors based on the acidity of the solution.dit. Share to: 1  Properties and Uses of the Phenolphthalein indicator Phenolphthalein is a chemical with the formula C20H14O4 and used in several practical applications.