Un indicador de la humedad del punto de rocío

Abstract

Various investigations have indicated that molds are the causative agent for most damp grain, bean and other feeding stuff deterioration and that mold development at normal temperatures is dependent upon the relative humidity of the inter-seed air. The dew point depression directly indicates the relative humidity of a given water-vapor condition in an air and water-vapor mixture. Therefore, “degrees depression” can directly give the moisture condition in the hygroscopic moisture range of a grain-air or other material mixture. A simple, homemade dew point moisture indicator is described, and some typical performance data for this simple type of instrument are given. Experience with this instrument to date indicates that it should find good use in the hands of laymen as a grain moisture condition indicator. It is believed that accuracy in field usage may be held easily to within one-half degree depression, or if the samples are placed in containers overnight before being read, accuracy can be held to within one-quarter of one degree. In the storage moisture range, this is less than one-quarter of one percent of grain moisture content. With refinement and proper control, this type of instrument may give high accuracy for experimental work in a laboratory.