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12.13.01 Part 1 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. This document is supplemented by the following parts, concerning the specific requirements for performance of the various types of apparatus: Part 4: Performance requirements for group II (non-mining) apparatus indicating up to a volume fraction of 100% lower explosive limit and Part 5: Performance requirements for group II (non-mining) apparatus indicating up to a volume fraction of 100% gas. [Part 2: Performance requirements for group I (mines) apparatus indicating up to a volume fraction of 5 % methane in air and Part 3: Performance requirements for group I (mines) apparatus indicating up to a volume fraction of 100 % methane in air are U.S. National Deviations and are shown in the document as struck out.] |
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