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Clamping bushings with a shoulder for tools with a cylindrical tail. Design and dimensions
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Natural gas. Determination of oxygen by electrochemical method
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Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Engineering methods for an essentially free field over a reflecting plane
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Household and similar electrical appliances. Safety. Part 2-81. Particular requirements for foot warmers and heating mats
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