Effective heat strain index using pocket computer.
An effective heat strain index (EHSI) using a hand calculator with memory is suggested for on-site evaluation of prevailing hot ambient conditions. The inputs to the programmed calculator include dry-bulb, wet-bulb and globe temperatures, and estimates of metabolism and air movements. The index is based on a program for calculation of the total heat balance and on the efficiency of sweating. The display of information on the ambient conditions EHSI display is one of following: no strain; low strain; high strain; or time limits of exposure.
D001831:Body Temperature; D003201:Computers; D006358:Hot Temperature; D006801:Humans; D008433:Mathematics; D009787:Occupational Medicine; D013312:Stress, Physiological; D013546:Sweating