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Optical fibres. Part 1-43. Measurement methods and test procedures. Numerical aperture
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Information technology. International standardized profiles AFTnn. File transfer, access and management. Part 1. Specification of ACSE, presentation and session protocols for use by FTAM
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Sound system equipment. Electroacoustical transducers. Measurement of suspension parts
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Camera lenses. Method for measurement of the image curvature and astigmation
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Information technology. Learning, education and training. Metadata for learning resources. Part 2. Dublin Core elements
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