A simple method to determine the water a
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J. E. Hallsworth; Y. Nomura
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Article
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1999
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John Wiley and Sons
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English
β 82 KB
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The water activity (a w ) of microbial substrates, biological samples, and foods and drinks is usually determined by direct measurement of the equilibrium relative humidity above a sample. However, these materials can contain ethanol, which disrupts the operation of humidity sensors. Previously, an