IEC 60079-13-Electrical apparatus for explosive gas atmospheres-Part 13- Construction and use of rooms or buildings protected by pressurization-1982-EN-FR.pdf
IEC 60079-13-Electrical apparatus for explosive gas atmospheres-Part 13- Construction and use of rooms or buildings protected by pressurization-1982-EN-FR.pdf
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IEC 60079-13-Electrical apparatus for explosive gas atmospheres-Part 13- Construction and use of rooms or buildings protected by pressurization-1982-EN-FR.pdf