Troy weight A grain is 20 mites, a mite is 24 droits, a droit is 20 perits, a perit is 24 blanks. In Scotland, the Incorporation of Goldsmiths of the City of Edinburgh used a system in multiples of sixteen. ("See Assay-Master's Accounts, 1681–1702, on loan from the Incorporation to the National Archives of Scotland".) Thus, there were 16 drops to the troy ounce, 16 ounces to the troy pound, and 16 pounds to the troy stone. The Scots had several other ways of measuring precious metals and gems, but this was the common usage for gold and silver. The Pound was
Media weight Media weight Media weight is a term used in advertising to refer to the size of the audience reached by an advertising campaign. Media weight is determined by the number and placement of advertisements in media such as television commercials, online ads, or billboards. Media weight is usually expressed in the form of GRP’s (Gross rating Points), AOTS (Average opportunity to see) and reach of target audience. The main use of media weights is to monitor how well the goals of a communication plan are being reached. There are different ways to measure media weight. The most important method in