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Acoustics. Determination of sound power levels of noise sources using sound intensity. Measurement at discrete points. Engineering method
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Environmental protection. Protection of water bodies. Methodology for assessing the risk of erroneous determination of the background content of pollutants in the water of watercourses
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Occupational safety standards system. Hand tools. Noise characteristics. Limits. Methods of testing
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Resources saving. Secondary resources and secondary raw materials. Terms and definitions
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Plugs and socket-outlets for household and similar purposes. Part 2-5. Particular requirements for adaptors and test methods
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