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Power line communication apparatus and systems on low-voltage electrical installations in the frequency range 1.6 MHz to 30 MHz. Part 2-1. Residential, commercial and industrial environment. Immunity requirements

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Telecontrol equipment and systems. Part 5. Transmission protocols. Section 104. Network access for IEC 60870-5-101 using standard transport profiles

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Reprography. Copirography. Diazotype calgue. Specifications

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Photosensitive charge transfer device. Measuring methods for parameters

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Radiographic and fluorographic paper. Marking and packing

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Information technology. Automatic identification and data capture techniques. Code 39 bar code symbology specification

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