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ANSI/ISA-RP12.13.02-2003 (IEC 61779-6 Mod)
Recommended Practice for the Installation, Operation, and Maintenance of Combustible Gas Detection Instruments
ANSI/ISA-RP12.13.02 (IEC 61779-6 Mod) gives guidance on the selection, installation, use, and maintenance of electrically operated group II apparatus for the detection and measurement of flammable gases complying with the requirements of IEC 61779-1 to IEC 61779-5 ANSI/ISA-12.13.01 (IEC 61779-1 through 5 Mod). It is a compilation of practical knowledge to assist the user, and applies to apparatus, instruments and systems that indicate the presence of a flammable or potentially explosive mixture of gas or vapour with air by using an electrical signal from a gas sensor to produce a meter reading, to activate a visual or audible pre-set alarm or other device, or any combination of these.
The International Society of Automation [isa]