Russian standards PDF
Optics and photonics. Holography. Part 1. Core terms and definitions. Classification
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Optics and photonics. Holography. Part 2. Аnalog holography. Terms and definitions
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Optics and photonics. Holography. Part 3. Digital and computer holography. Тerms and definitions
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Optics and photonics. Optical elements. Surface defects. Visual control
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Optics and photonics. Laser cladding by metal materials. Terms and definitions
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Welding production qualification system. Part 2. Welding personnel qualification. Rules
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