API RP 550 Manual on Installation of Refinery Instruments and Control Systems - Part I - Process Instrumentation and Control Section 2-Level (Third Edition)
EN 60079-0:2012 Explosive atmospheres - Part 0: Equipment - General requirements (Incorporates Amendment A11: 2013)
EN 60079-10-1:2009 Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres
EN 60079-20-1:2010 Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data
ISA S12.13 Part I Performance Requirements@ Combustible Gas Detectors
NFPA 496 Standard for Purged and Pressurized Enclosures for Electrical Equipment (Effective Date: 4/4/2020)*, 2021-01-01 Update
BS EN 61285:2015 history
2015BS EN 61285:2015 Industrial-process control. Safety of analyzer houses
2005BS EN 61285:2004 Industrial-process control - Safety of analyser houses
1995BS EN 61285:1995 Industrial-process control - Safety of analyser houses