共查询到18条相似文献,搜索用时 109 毫秒
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本文主要介绍了汽车内饰件感官测试——气味性测试的常规测试方法,对比归纳了国内车企对气味性测试方法的制定依据及参考要素,总结出了比较理想的气味性测试方法。 相似文献
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本文针对《汽车驾驶自动化分级》(报批稿)进行了详尽的解析。分析了标准对汽车驾驶自动化等级的划分定义及相应的技术要求,阐述了《汽车驾驶自动化分级》(报批稿)与SAE J3016的共性及差异。 相似文献
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浅谈汽车内饰材料挥发成雾性测试 总被引:2,自引:0,他引:2
汽车内饰材料中所含挥发性物质的释放是造成车内环境污染最直接的也是最主要的原因。对汽车内饰材料进行挥发性物质测试的重要方法之一就是挥发成雾性测试。本文中,笔者将对汽车内饰材料挥发成雾性测试的测试原理、测试设备、当前业界流行的主要测试方法和相关的标准作一些介绍。 相似文献
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本文介绍了汽车内饰材料常见的老化试验方法:人工加速老化试验、IP/DP箱暴晒和整车暴晒,分别讨论三种试验方法涉及的规范以及操作性.人工加速老化试验能快速掌握汽车内饰材料老化性能,缩短材料研发周期;IP/DP箱和整车对内饰件或其装配件进行的老化试验降低内饰材料加工工艺存在的风险,确保了内饰材料质量.整车暴晒收集的数据为人... 相似文献
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氙灯老化试验目前是众多汽车企业必检项目之一,汽车内外饰件用到的非金属材料有很多,如涂料、塑料、纤维织物、橡胶、皮革及装饰木纹件等等,并且形状多样,如何让氙灯试验更加准确,重复性更好,这对试验样品有严格的要求。 相似文献
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本文主要介绍了乘用车内(文中简称车内)空气质量污染源、管控项目及对应检测方法,整车制造商车内空气质量性能开发模式与管控机制。 相似文献
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The present work was performed to investigate the use of odorant measurements for prediction of odor concentration in facilities with growing-finishing pigs and to analyze the odorant composition in facilities with different floor and ventilation systems. Air was sampled in Nalophan bags, odor concentrations were measured by dilution-to-threshold olfactometry, and concentrations of odorants were measured by proton-transfer-reaction mass spectrometry (PTR-MS). Olfactometry and chemical analyses were synchronized to take place at identical time intervals after sampling. A principal component analysis revealed that different facilities for growing-finishing pigs can be distinguished based on the odorants. Pit ventilation comprising a small amount of the total ventilation air (10-20%) in facilities with both room and pit ventilation can be used to concentrate odorants, whereas the room ventilation contains lower concentrations of most odorants. A partial least squares regression model demonstrated that prediction of the odor concentration based on odorants measured by PTR-MS is feasible. Hydrogen sulfide, methanethiol, trimethylamine, and 4-methylphenol were identified as the compounds having the largest influence on the prediction of odor concentration, whereas carboxylic acids had no significant influence. In conclusion, chemical measurement of odorants by PTR-MS is an alternative for expressing the odor concentration in facilities with growing-finishing pigs that can be used to increase the understanding of odor from different types of facilities and improve the development of odor reduction technologies. 相似文献
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