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现行 ASTM E1748-95(2017)
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Standard Test Method for Evaluating the Engagement Between Windows and Insect Screens as an Integral System 评估Windows和昆虫屏幕之间作为一个整体系统的标准测试方法
发布日期: 2017-09-01
1.1 本试验方法包括在适当指定机构规定的负载条件下,评估窗户中功能位置的防虫网的静态负载阻力。 1.2 本试验方法适用于大于12英寸的防虫网。(300 mm),当防虫网处于功能位置时,可以从内部和外部方向进入。 1.3 本试验方法评估窗框防虫网附件的内部和外部静态负载阻力。 1.4 本试验方法描述了用于向试样施加静载荷的装置和程序。 1.5 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换,仅供参考,不被视为标准值。 1.6 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。 1.7 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 该测试方法是一种设计工具,用于评估静载荷下窗户和纱窗之间的接合情况。昆虫筛保持啮合的能力取决于载荷的大小、持续时间、重复性和啮合方法。 选择压板的尺寸和形状是为了防止在静态加载过程中损坏筛布。随意选择60秒的持续时间来标准化该试验方法。 5.2 本试验方法不用于评估编织筛网在筛框上的保持力。 注1: SMA/SMT中描述的程序 31是为此类评估开发的一种方法。 5.3 本试验方法不用于评估作为防止故意破坏或强行进入的安全或保护屏幕的保留情况。 注2: ANSI/SMA中描述的程序 6001是为此类评估开发的一种方法。 5.4 本试验方法不用于评估作为建筑物内乘员约束装置的防虫网的保持力,以防止意外坠落。 5.5 本试验方法不用于评估防虫网的保留情况,以确定其承受飓风或其他风暴事件期间可能产生的风载碎片冲击的能力。
1.1 This test method covers the evaluation of the static load resistance of an insect screen in its functional position in a window under load conditions prescribed by appropriate specifying authorities. 1.2 This test method is applicable to insect screens larger than 12 in. (300 mm) in least dimension that can be accessed from both the interior and exterior direction when the insect screen is in the functional position. 1.3 This test method evaluates both the interior and exterior static load resistance of the insect screen attachment to the window frame. 1.4 This test method describes the apparatus and the procedure to be used for applying static loads to specimens. 1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.6 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. 1.7 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 This test method is a design tool to evaluate the engagement between the window and insect screen under static loading. The ability of insect screens to remain engaged depends on the magnitude, duration, repetition of loads, and the method of engagement. The platen size and shape were chosen to prevent screen cloth damage during static loading. The 60-s duration was arbitrarily chosen to standardize this test method. 5.2 This test method is not intended for evaluating retention of woven screen mesh to a screen frame. Note 1: The procedure described in SMA/SMT 31 is one method that has been developed for such evaluation. 5.3 This test method is not intended for evaluating retention of security or protection screens used as a deterrent against vandalism or forced entry. Note 2: The procedure described in ANSI/SMA 6001 is one method that has been developed for such evaluation. 5.4 This test method is not intended for evaluating the retention of insect screens being used as a restraint of occupants within the building as a means of preventing accidental falls. 5.5 This test method is not intended for evaluating retention of insect screens for their ability to withstand impacts from windborne debris as might develop during hurricanes or other windstorm events.
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