API RP 500 - Remended Practice for Classification

api500API 500: Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and API 510: Pressure Vessel Inspectionvaluable to 's Engineers, Producers and Musicians. Features • 16 Input Channels each with Mic Pre and Equalizer • Accepts up to eht API 500 Series