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LEL Detectors Regulations in Europe and USA
Reference to European and USA standards for placing of LEL detectors in oil and gas plants.


Are there any standards in Europe and USA that regulates the place of installation of LEL detector? For example, not far than 3 metres from pump with flammable liquid or something like that.

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In the US it is the NFPA (Nat. Fire Protection), but there are also guide lines in the API standards. EU also has standards, perhaps a bit more stringent.

Can you tell the number of the standards or reference to them? I'd like to read them.