The noun FILTRATION has 2 senses: 1. the process whereby fluids pass through a filter or a filtering medium. 2. the act of changing a fluid by passing it through a filter. Familiarity information: FILTRATION used as a noun is rare.
A sentence averages eleven words; an A4 / letter size sheet averages 32 to 35 sentences. A normal size sheet of paper with a standard layout, based on 80% - 90% coverage contains about 350 to 400 words.
Take a single A4-sheet, and apply the standard 25 mm (approximately 1Ë) margins most of us use when preparing letters, reports, articles and the like. The working area â 160 mm by 247 mm â is well within the bounds noted above.