The relationship between the installation of combustible gas detector and gas density

2009-03-30View Original

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The specification states: For detectors that detect combustible gases that are heavier than air, the installation height should be 0.3 to 0.5 m from the floor (or floor). Detectors that detect toxic gases that are heavier than air should be close to the leak point, and their installation height should be 0.4 to 0.6 m from the floor (or floor). A gas with a density greater than 0.97 kg/m3 (under standard conditions) is considered heavier than air ； A gas with a density less than 0.97 kg/m3 (under standard conditions) is considered lighter than air. This density is 0.75 of the density of air. Why is it set as 0.75 instead of 1.0?

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The relationship between the installation of combustible gas detector and gas density

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