Historical
ANSI/ISA 12.13.01-2003 (IEC 61779-1 through 5 Mod)
Performance Requirements for Combustible Gas Detectors
This part of ANSI/ISA-12.13.01-2003 (IEC 61779-1 through 5 Mod) specifies general requirements for construction and testing and describes the test methods that apply to portable, transportable and fixed apparatus for the detection and measurement of flammable gas or vapour concentrations with air. The apparatus, or parts thereof, are intended for use in potentially explosive atmospheres.
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The International Society of Automation [isa]