(A) Documentation for Industrial Occupancies
Informational Note No. 1: For examples of area classification drawings, see ANSI/API RP 505-1997, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Zone 0, Zone 1, or Zone 2; ANSI/ISA-60079-10-1 (12.24.01)-2014 Explosive Atmospheres — Part 10—1: Classification of Areas — Explosive gas atmospheres ; and Model Code of Safe Practice in the Petroleum Industry, Part 15: Area Classification Code for Installations Handling Flammable Fluids, EI 15 :2005, Energy Institute, London.
Informational Note No. 2: Where gas detection equipment is used as a means of protection in accordance with 505.8(I)(1), (I)(2), or (I)(3), the documentation typically includes the type of detection equipment, its listing, installation location(s), alarm and shutdown criteria, and calibration frequency.