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Photography. Camera lenses. Determination of ISO colour contribution index (ISO/CCI)
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Optical fibres. Part 1-34. Measurement methods and test procedures. Fibre curl
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Mechanical structures for radio-electronic equipment. Injector/extractor handle. Dimensions of mechanical structures of the 482,6 mm (19 in) series
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Data transmission equipment signal conversion modules for a 64 Kbit/s basic digital channel. Types and basic parameters
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Communication networks and systems in substation. Part 7-4. Basic communication structure for substation and feeder equipment. Compatible logical node classes and data classes
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