NASA NTRS · 19690000501
Tool for reading psychrometric charts
Abstract
Three-legged, clear plastic tool is designed so that the angles of each leg correspond with the angles of psychometric chart construction for each of the three required scales. The appropriate edges are tapered to the chart surface.
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De Angelo, F. T.. 1969-10-01. Tool for reading psychrometric charts. https://ntrs.nasa.gov/citations/19690000501
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