A Comparison of Four Instruments for Measuring WBGT Index Correlations of Botsball with WBGT.
Abstract
The ambient wet bulb globe temperature (WBGT) derived from three different WBGT kits, namely, (a) Weksler, (b) YSI, (c) Army and (d) the ambient wet globe temperature (WGT) measured by Botsball, were compared with the WBGT given by standard kit given in TB Med 175. At regular intervals (1) visual observations were made on the instruments and (2) an automated data collection system was used to record data from temperature sensors attached to the instruments. Significant differences in WBGT readings were found among the instruments, but the range for a given environment was usually less than 0.5 C. Readings taken by visual observations resulted in WBGT values which differed by less than 0.3 C from those calculated from the automated data collection system. By using an equation obtained for Botsball, it would be possible to modify the Botsball to read WBGY directly and to be a comparable instrument in determining environmental heat stress. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 08, 1978
- Accession Number
- ADA069573
Entities
People
- B. Onkaram
- L. A . Stroschein
- R. F. Goldman
Organizations
- United States Army Research Institute of Environmental Medicine