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Validation of ISO 9920 clothing item insulation summation method based on an ambulance personnel clothing system
Industrial Health ( IF 1.8 ) Pub Date : 2021-02-26 , DOI: 10.2486/indhealth.2020-0208
Kalev Kuklane 1, 2 , Róbert Toma 3
Affiliation  

This study aimed to validate the summation methods suggested by ISO 9920. Twenty seven items from an ambulance personnel clothing system were selected for testing. The basic insulation of each garment item (Iclu) was calculated based on the thermal manikin tests. More than 100 realistic clothing combinations were compiled and basic insulation (Icl) of these ensembles was calculated according to ISO 9920. These were ranked after the calculated insulation, and 14 sets covering insulation from 0.63 to 3.33 clo were measured on the thermal manikin for acquiring the basic clothing insulation (Icl). Regression analysis was used to compare the summed and measured Icl values. The difference between values varied from −18 to 12%. The highest percentual difference was for the lightest clothing sets, while the absolute differences were similar over the whole insulation range ranging between −0.17 to 0.18 clo with an average difference of 0.02 clo (−0.16%). All basic insulation values stayed very close to the line of identity (R2=0.98). The summation equation gave, in the case of this ambulance clothing system, very close results to the measured values. This encourages evaluating and selecting protective clothing combinations for thermal comfort based on individual item measurements.



中文翻译:

基于救护人员服装系统的 ISO 9920 服装项目绝缘求和方法的验证

本研究旨在验证 ISO 9920 建议的求和方法。从救护人员服装系统中选择了 27 个项目进行测试。每个服装项目 ( I clu )的基本绝缘是根据热人体模型测试计算的。编制了 100 多种逼真的服装组合,并根据 ISO 9920 计算了这些套装的基本绝缘 ( I cl )。这些按照计算出的绝缘进行排名,并在热假人身上测量了 14 套覆盖从 0.63 到 3.33 clo 的绝缘。获得基本的服装绝缘材料(I cl)。回归分析用于比较总和和测量的I cl值。值之间的差异从 -18% 到 12% 不等。最高百分比差异出现在最轻的服装套装中,而绝对差异在 -0.17 至 0.18 clo 的整个绝缘范围内相似,平均差异为 0.02 clo (-0.16%)。所有基本绝缘值都非常接近等式线 (R 2 =0.98)。在这种救护服系统的情况下,求和方程给出了与测量值非常接近的结果。这鼓励基于单个项目的测量来评估和选择热舒适性的防护服组合。

更新日期:2021-03-17
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