Online Standards Store PDF
Low voltage systems. Cable systems. Basic principles. Classification
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Informational ensuring of equipment and operational activity. Language of operation activity. Structured representation of textual information in message formats
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Information technology. Open systems interconnection. Job transfer and manipulation concepts and services
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Optics and optical instruments. Optical coatings. Part 1. Terms and definitions
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Optical materials. Methods for determination of chemical stability. Groups of chemical stability
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