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首页> 外文期刊>Applied Ergonomics >Validation of standard ASTM F2732 and comparison with ISO 11079 with respect to comfort temperature ratings for cold protective clothing
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Validation of standard ASTM F2732 and comparison with ISO 11079 with respect to comfort temperature ratings for cold protective clothing

机译：验证标准ASTM F2732并在防寒服的舒适温度等级方面与ISO 11079进行比较

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American standard ASTM F2732 estimates the lowest environmental temperature for thermal comfort for cold weather protective clothing. International standard ISO 11079 serves the same purpose but expresses cold stress in terms of required clothing insulation for a given cold climate. The objective of this study was to validate and compare the temperature ratings using human subject tests at two levels of metabolic rates (2 and 4 MET corresponding to 116.4 and 232.8 W/m(2)). Nine young and healthy male subjects participated in the cold exposure at 3.4 and 30.6 degrees C. The results showed that both standards predict similar temperature ratings for an intrinsic clothing insulation of 1.89 do and for 2 MET activity. The predicted temperature rating for 2 MET activity is consistent with test subjects' thermophysiological responses, perceived thermal sensation and thermal comfort. For 4 MET activity, however, the whole body responses were on the cold side, particularly the responses of the extremities. ASTM F2732 is also limited due to its omission and simplification of three climatic variables (air velocity, radiant temperature and relative humidity) and exposure time in the cold which are of practical importance. (C) 2014 Elsevier Ltd and The Ergonomics Society. All rights reserved.
机译：美国标准ASTM F2732估计了寒冷天气防护服热舒适的最低环境温度。国际标准ISO 11079达到了相同的目的，但在给定的寒冷气候下，根据所需的衣服隔热要求表达了寒冷压力。这项研究的目的是在两个代谢率水平下（2和4 MET分别对应于116.4和232.8 W / m（2）），使用人类受试者测试来验证和比较温度等级。九名年轻和健康的男性受试者分别在3.4和30.6摄氏度下进行了冷暴露。结果表明，两种标准都预测相似的温度等级，即衣物的固有隔热性能为1.89 do和2 MET活性。 2 MET活性的预测温度额定值与测试对象的热生理反应，感知的热感觉和热舒适度一致。然而，对于4 MET的活动，全身的反应偏冷，尤其是四肢的反应。 ASTM F2732还受到限制，因为它忽略了三个重要的气候变量（风速，辐射温度和相对湿度）和在寒冷环境中的暴露时间，这些对于实际意义至关重要。 （C）2014 Elsevier Ltd和人体工程学学会。版权所有。

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