API Recommended Practice 500, 4th Edition

api 500 Api RP 500. This document provides recommendations for classifying locations for electrical installations at petroleum facilities classified as Class I. API RP 500 defines two types of divisions: Division 1: An area in which nitable concentrations of flammable gases, vapors, or liquids

api36, API RP 500 defines two types of divisions: Division 1: An area in which nitable concentrations of flammable gases, vapors, or liquids.