The work of the main European research teams in the field of thermal factors was coordinated in order to improve significantly the Required Sweat Rate model published as an international standard. Many significant modifications were brought, in particular concerning the effects of forced convection, body movements and exercise and the prediction of the skin temperature as a function of the rectal temperature and in case of severe conditions of radiation, humidity and clothing. The criteria for acceptable work durations in hot environments were updated concerning the maximum increase in core temperature and the acceptable water loss. The revised model, called Predicted Heat Strain model, was validated through a set of lab and field experiments involving stable and fluctuating conditions with high and low radiation, humidity and air velocity. It is meanwhile adopted as an ISO and CEN standard. In addition, a strategy was developed to assess the risks of heat disorders in any working situation. It is based on the three highest stages of the SOBANE strategy: an "Observation" method for improving simply the thermal conditions of work; an "Analysis" method to evaluate the magnitude of the problem and optimise the choice of solutions and an "Expert" method for in depth analysis of the working situation when needed.

译文

协调了欧洲主要研究小组在热因素领域的工作,以显着改善作为国际标准发布的所需汗率模型。进行了许多重大修改,特别是在强迫对流,身体运动和运动的影响以及皮肤温度随直肠温度的变化以及在辐射,湿度和衣服的严酷条件下的预测方面。更新了在高温环境中可接受的工作持续时间的标准,涉及岩心温度的最大升高和可接受的水损失。修订后的模型称为预测热应变模型,已通过一系列实验室和现场实验进行了验证,这些实验涉及高辐射和低辐射,湿度和空气速度的稳定和波动条件。同时被采用为ISO和CEN标准。此外,还制定了一项战略,以评估任何工作情况下的热病风险。它基于SOBANE策略的三个最高阶段: 一种 “观察” 方法,用于简单地改善工作的热条件; 一种 “分析” 方法,用于评估问题的严重性并优化解决方案的选择,以及一种 “专家” 方法,用于在需要时深入分析工作情况。

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