ANSI/ISA RP12.12.03-2002
ANSI/ISA RP12.12.03-2002
Recommendations for Portable Electronic Products Suitable for Use in Class I and II, Division 2, Class I Zone 2 and Class III, Division 1 and 2 Hazardous (Classified) Locations The International Society of Automation / 10-May-2002 / 26 pages