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Switches for appliances. Part 2-1. Particular requirements for cord switches

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Metal powders. Microscopic method of particle size determination

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Yogurt. Enumeration of characteristic microorganisms. Colony-count technique after incubation at 37 °C

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Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Precision methods for reverberation test rooms

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Road vehicles. Mechanical properties of fasteners made of carbon steel and alloy steel. Part 3. Flat washers with speci- fied property classes

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Biotechnology. Biological products for medical use. Ancillary materials present during the production of cellular therapeutic products

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