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Fertilizers. Determination of the fineness of grinding (dry method)
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Textile materials and products. Determination of pH of aqueous extract
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Testing methods for the resistance of machines, devices and other engineering products to external climatic influencing factors. Test for the action of humidity
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Enzyme preparations. Methods of xylanase enzyme activity determination
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Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Engineering methods for small movable sources in reverberant fields. Part 2. Methods to determine sound power levels for special reverberation test rooms
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