Russian standards PDF
Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Survey methods using an enveloping measurement surface over a reflecting plane
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Test conditions for machining centres. Part 7. Accuracy of finished test pieces
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Textiles. Web formation and bonding in nonwovens. Vocabulary
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Acoustics. Measurement of the influence of road surfaces on traffic noise. Part 1. Statistical pass-by method
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Acoustics. Measurement of the influence of road surfaces on traffic noise. Part 2. The close-proximity method
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