Multi-use psychrometric chart

This free psychrometric chart from JS Humidifiers has a wipe-clean surface so that it can be used many times.
Psychrometric charts with a wipe-clean reusable surface are available free from JS Humidifiers. These A3 charts can be kept on the desk ready for immediate use. The charts can be used to size humidification systems by plotting required moisture levels against given temperatures. Readers can obtain a copy by telephone or e-mail. Tel. 01903 850200

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