PSYCHROMETRIC CHARTS

• This Technical Information Paper contains psychrometric (humidity) charts. The charts cover temperature and humidity ranges of practical use in the pulp and paper industry. ASME and NBS tables of thermodynamic properties of water and air were used in preparing the charts.
• Information about mixtures of air and water vapor is important in evaluating paper drying rates and drying uniformity. Local air humidity has a direct effect on drying rates.

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