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Dimensions and output series for rotating electrical machines - Frame numbers 355 to 1 000 and flange numbers 1 180 to 2 360. Original standard UNE-EN IEC 60072-2-2025 in PDF full version. Additional info + preview on request

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Explosive atmospheres Part 11: Equipment protection by intrinsic safety "i". Original standard UNE-EN IEC 60079-11-2025 in PDF full version. Additional info + preview on request

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Explosive atmospheres - Part 14- Electrical installation design, selection and installation of equipment, including initial inspection. Original standard UNE-EN IEC 60079-14-2025 in PDF full version. Additional info + preview on request

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Explosive atmospheres - Electrical ignition systems for internal combustion engines. Original standard UNE-EN IEC 60079-45-2025 in PDF full version. Additional info + preview on request

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Method for the determination of the proof and the comparative tracking indices of solid insulating materials. Original standard UNE-EN IEC 60112-2025 in PDF full version. Additional info + preview on request

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Quartz crystal units of assessed quality - Guidelines for the use. Original standard UNE-EN IEC 60122-2-2025 in PDF full version. Additional info + preview on request

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