IEC: 79 - 13 - 1982; Electrical apparatus for explosive gas atmospheres. Pt.13 - Construction and use of rooms or buildings protected by pressurization
IEC: 79 - 13 - 1982; Electrical apparatus for explosive gas atmospheres. Pt.13 - Construction and use of rooms or buildings protected by pressurization
- Geneva IEC 1982
- 17p
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