GB - Chinese national standards

Expression of performance of electrochemical analyzers - Part 5: Oxidation-reduction potential or redox potential

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Acoustics - Determination of sound power levels of multisource industrial plants for evaluation of sound pressure levels in the environment - Engineering method

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Acoustics - Measurement of sound absorption in a reverberation room

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Acoustics - Measurement of sound pressure levels in the interior of aircraft during flight

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Acoustics - Definitions and measurement methods for the transmitted fields of focusing ultrasonic transducers

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Aluminum and aluminum alloys continue extruded tubes

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Nickel foam for battery

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Nickel foam

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Lithium cobalt oxide

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Nickel plated punched steel strip for rechargeable battery

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