The maximum volumetric throughput at a given inlet and outlet pressure under specific gas conditions for which a regulator is designed with the valve (s) maintaining control of the flow
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}