1.1 本试验方法用于识别和测量固化喷涂聚氨酯泡沫（SPF）隔热材料样品中挥发性有机化合物（VOCs）的排放量，使用微型环境试验箱，结合特定的空气采样和VOCs分析方法。 1.2 由产品样品制备的样品在实践中描述的微型室中保持在特定的温度、湿度、气流速率和经过时间条件下 D7706 空气样本以微尺度腔室的流速在腔室排气口处周期性地收集。 1.2.1 甲醛和其他低分子量羰基化合物的样品收集在处理过的硅胶筒上，并按照测试方法中的描述通过高效液相色谱法（HPLC）进行分析 D5197 和ISO 16000-3。 1.2.2 其他挥发性有机物的样品在多吸附剂采样器上收集，并通过美国环保局汇编方法TO-17和ISO 16000-6中所述的热解吸气相色谱/质谱法（TD-GC/MS）进行分析。 1.3 此测试方法专门用于SPF隔热产品。兼容的产品类型包括开孔和闭孔SPF隔热的两组分、高压和双组分、低压配方。 1.4 可以通过该测试方法采样和分析的挥发性有机物通常包括有机发泡剂，如1,1,1,3,3-五氟丙烷、甲醛和其他羰基化合物、残留溶剂和一些胺催化剂。一些有机阻燃剂的排放量可以在24小时后用这种方法测量，例如磷酸三（氯异丙基）酯（TCPP）。 1.5 本试验方法不包括亚甲基二苯二异氰酸酯（MDI）或其他异氰酸酯的取样和分析。 1.6 面积比排放率和质量比排放率在经过时间和燃烧室条件下进行量化，如 13.2 和 13.3 本试验方法的。 1.7 该测试方法用于识别排放的化合物，并估计其在特定时间的排放系数。排放系数基于规定的条件，因此，使用数据预测其他环境中的排放可能不合适，并且超出了本试验方法的范围。结果可能不能代表其他测试条件，也不能与其他测试方法相比较。 1.8 该测试方法主要适用于按照实践中所述进行喷涂和包装的新涂SPF绝缘样品 D7859 .喷涂过程中以及喷涂后第一个小时内的排放量测量不在本试验方法的范围内。 1.9 该测试方法也可用于测量SPF隔热材料样本的排放量，这些样本是从已经使用隔热材料的建筑工地收集的。此类测量的潜在用途包括对产品使用后的气味投诉进行调查。然而，气味调查和其他室内空气质量（IAQ）调查的具体细节不在本测试方法的范围内。 1.10 以国际单位制表示的数值应视为标准。本标准中不包括其他计量单位。 1.11 本标准并非旨在解决与其使用相关的所有安全问题（如有）。 本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.12 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ===意义和用途====== 6.1 SPF隔热材料是在现场应用和形成的，这给测量产品排放带来了独特的挑战。该测试方法提供了一种测量SPF隔热材料应用后化学排放的方法。 6.2 该测试方法可用于识别SPF隔热产品中排放的化合物，排放系数可用于比较指定采样时间和测试条件下的排放量。 6.3 排放数据可用于产品开发、制造质量控制和现场样品的比较。 6.4 本试验方法用于测定新使用的SPF绝缘样品的化学排放量。该测试方法在建筑规模环境中气味调查的实用性目前尚未得到证实。

1.1 This test method is used to identify and to measure the emissions of volatile organic compounds (VOCs) emitted from samples of cured spray polyurethane foam (SPF) insulation using micro-scale environmental test chambers combined with specific air sampling and analytical methods for VOCs. 1.2 Specimens prepared from product samples are maintained at specified conditions of temperature, humidity, airflow rate, and elapsed time in micro-scale chambers that are described in Practice D7706 . Air samples are collected periodically at the chamber exhaust at the flow rate of the micro-scale chambers. 1.2.1 Samples for formaldehyde and other low-molecular weight carbonyl compounds are collected on treated silica gel cartridges and are analyzed by high performance liquid chromatography (HPLC) as described in Test Method D5197 and ISO 16000-3. 1.2.2 Samples for other VOCs are collected on multi-sorbent samplers and are analyzed by thermal-desorption gas chromatography / mass spectrometry (TD-GC/MS) as described in U.S. EPA Compendium Method TO-17 and ISO 16000-6. 1.3 This test method is intended specifically for SPF insulation products. Compatible product types include two component, high pressure and two-component, low pressure formulations of open-cell and closed-cell SPF insulation. 1.4 VOCs that can be sampled and analyzed by this test method generally include organic blowing agents such as 1,1,1,3,3-pentafluoropropane, formaldehyde and other carbonyl compounds, residual solvents, and some amine catalysts. Emissions of some organic flame retardants can be measured after 24 h with this method, such as tris (chloroisopropyl) phosphate (TCPP). 1.5 This test method does not cover the sampling and analysis of methylene diphenyl diisocyanate (MDI) or other isocyanates. 1.6 Area-specific and mass-specific emission rates are quantified at the elapsed times and chamber conditions as specified in 13.2 and 13.3 of this test method. 1.7 This test method is used to identify emitted compounds and to estimate their emission factors at specific times. The emission factors are based on specified conditions, therefore, use of the data to predict emissions in other environments may not be appropriate and is beyond the scope of this test method. The results may not be representative of other test conditions or comparable with other test methods. 1.8 This test method is primarily intended for freshly applied, SPF insulation samples that are sprayed and packaged as described in Practice D7859 . The measurement of emissions during spray application and within the first hour following application is outside of the scope of this test method. 1.9 This test method can also be used to measure the emissions from SPF insulation samples that are collected from building sites where the insulation has already been applied. Potential uses of such measurements include investigations of odor complaints after product application. However, the specific details of odor investigations and other indoor air quality (IAQ) investigations are outside of the scope of this test method. 1.10 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.11 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.12 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 6.1 SPF insulation is applied and formed onsite, which creates unique challenges for measuring product emissions. This test method provides a way to measure post-application chemical emissions from SPF insulation. 6.2 This test method can be used to identify compounds that emit from SPF insulation products, and the emission factors may be used to compare emissions at the specified sampling times and test conditions. 6.3 Emission data may be used in product development, manufacturing quality control and comparison of field samples. 6.4 This test method is used to determine chemical emissions from freshly applied SPF insulation samples. The utility of this test method for investigation of odors in building scale environments has not been demonstrated at this time.