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Information technology. Open systems interconnection. Conformance test suite for the presentation layer. Part 1. Test suite structure and test purposes for the presentation protocol

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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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Computers and data processing systems. Admissible noise emission levels at workstations and methods for determination

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Health informatics. Classification of safety risks from health software

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Image intensifier and image converter tubes. Method of measuring the angular displacement of the image

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Radiorelay equipment. Interfaces. Measurements methods

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