State system for ensuring the uniformity of measurements. National standard. Standard reference data. Laser crystals (Potassium rare-earth tungstates). Elasticity constants. Elasto-optic modules for isotropic diffraction
Common test methods for insulating and sheathing materials of electric and optical cables. Part 1-3. General application methods. Methods for determining the density. Water absorption tests. Shrinkage test
Information technology. Protection of information technology and automated systems against security threats posed by use of covert channels. Part 1. General principles
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