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现行 ASTM D8342/D8342M-21
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Standard Test Method for Measuring the Probability of a Full Length Burn on a Cannabis/Hemp Pre-roll 大麻/大麻预卷上全长烧伤概率测量的标准试验方法
发布日期: 2021-06-01
1.1 本防火测试响应标准提供了一种标准测量方法,用于测量放置在基材上的大麻/大麻预卷产生足够热量以继续燃烧,从而可能导致床上用品或软垫家具着火的概率。 1.2 本试验方法应适用于拟通过燃烧方式进行个人吸入并含有任何类型大麻植物(即大麻/大麻)的干燥草药的预卷装置。为简洁起见,“大麻”一词此后应指任何类型的大麻植物(大麻/大麻)。 1.3 本试验方法适用于沿大麻预卷柱长度燃烧的预卷。 1.4 本试验方法不适用于不在本标准范围内的灌注预滚。 1.5 卷前准备和取样应按照惯例进行 D8343/D8343M . 1.6 单位- 以国际单位制或美国习惯单位(USC单位)表示的数值应单独视为标准。 每个系统中规定的值可能不是精确的等效值;因此,每个系统应相互独立使用。将两个系统的值合并可能会导致不符合标准。公制单位将作为标准单位,USC单位将显示在相对于公制单位的括号中。 1.7 本标准并非旨在解决与其使用相关的所有安全问题(如有)。本标准的用户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。 1.8 本国际标准是根据世界贸易组织技术性贸易壁垒(TBT)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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 根据NFPA提供的统计数据,致命火灾中最常见的始发事件之一是将吸烟材料(如预卷)掉落到床上或软垫家具上。试验方法 E1352 和 E1353 NFPA 261和NFPA 260已开发用于评估软垫家具模型和组件对香烟点燃的敏感性(类似于预卷)。颁布联邦标准16 CFR 1632是为了降低床垫和床垫被点燃的吸烟材料点燃的可能性。测试方法研究(NIST 851-2)发现,滤纸基材可用于用多层普通滤纸代替织物/填充组件,从而在测量点火强度方面显示出系统的进步。此外,滤纸基材上全长度燃烧百分比高的吸烟材料(NIST 1436)产生足够的热量保持燃烧,因此比全长度燃烧百分比低的吸烟材料更有可能点燃软家具- 长度燃烧。 5.2 在本试验方法中,预辊受到一组实验室条件的影响。如果替换了不同的条件或改变了最终使用条件,则可能无法使用本试验方法预测火灾试验响应中的定量变化。因此,定量结果仅适用于本试验方法中描述的火灾试验暴露条件。辊前准备和取样对于确保对结果的影响最小非常重要。应根据实践进行准备 D8343/D8343M . 5.3 本试验方法概述了预卷中大麻草药材料的含水量。确定所用大麻草药材料的含水量将有助于更清楚地了解水分对预卷在点燃时实现全长燃烧的可能性的影响。 5.4 该测试方法的数据可以帮助推断如果保持不变,预滚样本集是否会保持点火。 5.5 本试验方法可用于确定大麻/大麻预卷上的全长烧伤概率。
1.1 This fire-test-response standard provides a standard measure of the probability of a cannabis/hemp pre-roll positioned on a substrate to generate enough heat to continue burning and thus potentially cause ignition of bedding or upholstered furniture. 1.2 This test method shall be applicable to pre-roll units that are intended for personal inhalation by means of combustion and contain dried herbal material from any type of a cannabis plant, that is, cannabis/hemp. For the sake of brevity, the term “cannabis” shall be used henceforth to refer to any type of cannabis plant (cannabis/hemp). 1.3 This test method shall be applicable to pre-rolls that burn along the length of a cannabis pre-roll column. 1.4 This test method shall not be applicable to infused pre-rolls, which are outside the scope of this standard. 1.5 Pre-roll preparation and sampling shall be made using Practice D8343/D8343M . 1.6 Units— The values stated in either SI units or United States Customary units (USC units) are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Metric units will be stated as standard and USC units will be shown in brackets relative to the metric units. 1.7 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. 1.8 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 ====== 5.1 According to statistics provided by the NFPA, one of the most common initiating events in a fatal fire is the dropping of a smoking material, such as a pre-roll, onto a bed or a piece of upholstered furniture. Test Methods E1352 and E1353 and NFPA 261 and NFPA 260 have been developed to evaluate the susceptibility of upholstered furniture mock-ups and components to ignition by cigarettes (similarly for pre-rolls). Federal Standard 16 CFR 1632 was promulgated to reduce the likelihood that mattresses and mattress pads would ignite from a lighted smoking material. Research of test methods (NIST 851-2) has found that filter paper substrates can be used to replace the fabric/padding assembly with multiple layers of common filter paper showing a systematic progression in measuring ignition strength. Additionally, smoking materials with high percentages of full-length burns on filter paper substrates (NIST 1436) generate enough heat to keep burning and thus are more likely to ignite soft furnishings than smoking materials with lower percentages of full-length burns. 5.2 In this test method, the pre-rolls are subjected to a set of laboratory conditions. If different conditions are substituted or the end-use conditions are changed, it may not be possible to use this test method to predict quantitative changes in the fire test response. Therefore, the quantitative results are valid only for the fire test exposure conditions described in this test method. Pre-roll preparation and sampling are very important to ensure minimal impact on results. Preparation shall be made using Practice D8343/D8343M . 5.3 This test method outlines the moisture content of cannabis herbal material in the pre-roll. Determining the moisture content of cannabis herbal material used will shed more light on the effects of moisture on the probability of a pre-roll to achieve a full-length burn when ignited. 5.4 The data from this test method can help extrapolate whether a sample set of pre-rolls would maintain ignition if remained untouched. 5.5 This test method can be used to determine the probability of a full-length burn on cannabis/hemp pre-roll.
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