Grammage is specified in avoirdupois pounds and the sheet count of a paper ream is usually 500 sheets. However, the mass specified is not the mass of the ream that is sold to the customer. Instead, it is the mass of the uncut "basis ream" in which the sheets have some larger size (parent size). Often, this is a size used during the manufacturing process before the paper was cut to the dimensions in which it is sold. So, to compute the mass per area, one must know The standard dimensions and sheet count of a ream vary according to the
Page (paper) Page (paper) A page is one side of a leaf (or sheet) of paper, parchment or other material (or electronic media) in a book, magazine, newspaper, or other collection of sheets, on which text or illustrations can be printed, written or drawn, to create documents. It can be used as a measure of communicating general quantity of information ("That topic covers twelve pages") or more specific quantity ("there are 535 words in a standard page in standard font type") The word "page" comes from the Latin term "pagina", which means a "a written page, leaf, sheet" which in turn comes