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Standard Laboratory Guide for the Determination of Volatile Organic Compound Emissions from Polyurethane Foam (CAN/ULC S774) 聚氨酯泡沫挥发性有机化合物排放物测定的标准实验室指南(CAN/ULC S774)
发布日期: 2020-03-17
“本实验室指南用于评估挥发性有机化合物(VOC)住宅建筑所用材料的排放。本指南规定了使用试验箱评估材料安装后某一时间点排放物的推荐程序。该指南包括:头空间分析程序,用于初步识别材料释放的挥发性有机化合物;两个用于表征材料VOC排放速率的动态室程序;一种基于动态室内测试结果计算室内挥发性有机化合物浓度的方法。 顶空分析是一种静态测试,用于识别材料中排放的大量化合物。接下来是一个动态室程序。 第一个程序测量材料的典型VOC排放特性。在对试样进行30天后进行试验。 第二个程序测量材料的典型VOC排放曲线,从安装后24小时开始,然后持续30天。 结果用于计算室内空气VOC浓度分布,并确定可接受性 用于新结构和/或改造用途的材料。 第一个程序用于评估新住宅建筑中的材料,前提是最低 从安装到大楼入住的30天内。 第二个步骤是在正常30天的最低通风时间内对材料进行更复杂的评估 未提供与新建工程相关的停工时间(例如,占用的建筑物)。 在这些特殊情况下(如被占用的建筑物),应用和安装标准将提供 隔离和通风要求(如有必要)。第二个程序的测试结果将 确定这些要求所需的时间长度。 评估材料可接受性的方法利用了估算值的比较 室内空气中挥发性有机化合物的浓度符合允许浓度。 "
"This laboratory guide has been developed for the assessment of volatile organic compound (VOC) emissions from materials used in residential buildings. The guide specifies recommended procedures for the use of test chambers to evaluate emissions from the material at a point in time following its installation. The guide includes: A head-space analysis procedure for initial identification of VOCs released by the material; Two dynamic chamber procedures for characterizing the rate of VOC emissions from the material; A methodology for calculating the estimated indoor air concentrations of VOCs based on the results of dynamic chamber testing. The head-space analysis is a static test to identify significant amounts of emitted compounds from the material. It is followed by one of the dynamic chamber procedures. The first procedure measures the typical VOC emission characteristics of the material. The test is conducted after conditioning the specimen for 30 days. The second procedure measures the typical VOC emission profile of the material commencing 24 hours after installation and continuing for 30 days thereafter. The results of are used to calculate indoor air VOC concentration profiles and to determine the acceptability of the material for new construction and/or retrofit use. The first procedure is used to evaluate the material in new residential construction when there is a minimum of 30 days from the installation to building occupancy. The second procedure is a more complex evaluation of the material when the normal 30 days minimum airing out time associated with new construction is not provided (e.g. occupied buildings). In these special cases (e.g. occupied buildings), the application and installation standard will provide the requirements for isolation and ventilation, if necessary. The test results of the second procedure will determine the length of time that these requirements are necessary. The methodology for assessing the acceptability of the material utilizes comparison of the estimated indoor air concentration of VOCs with permissible concentration. "
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发布单位或类别: 美国-美国保险商实验所
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