Russian standards PDF
Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Precision methods for anechoic rooms and hemi-anechoic rooms
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Low-voltage surge protective devices. Part 1. Surge protective devices connected to low-voltage power distribution systems. Requirements and test methods
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Quality management systems. Guidelines for the application of ISO 9001 in local government
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Sound broadcasting digital. Coding of signals of sound broadcasting with reduction of redundancy for transfer on digital communication channels. A part III (MPEG-4 audio). Parametric audio coding - HILN
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Non-linear resistor type gapped surge arresters and metal-oxide surge arresters without gaps for a.c. electrical installations for voltages from 3 to 750 kV. Part 5. Selection and application recommendations
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