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Plastics. Biobased content. Part 4. Determination of biobased mass content
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Simulator complexes for training of locomotive crews. General technical requirements
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State system for ensuring the uniformity of measurements. Radiometers of natural radioactive aerosols. Verification procedure
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Prospecting, exploration and development of hydrocarbon deposits. Terms and definitions
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Qualification test of welders. Fusion welding. Part 3. Copper and copper alloys
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