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Information technology. Open Systems Interconnection. The directory. Part 5. Protocol specifications
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Optical fibres. Part 1-41. Measurement methods and test procedures. Bandwidth
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TV receiving aerials for television and sound broadcasting stations in VHF and UHF frequency bands. Measurement methods of electric parameters
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Reprography. Micrography. Microforms with diazofilms. General technical requirements and methods of control
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