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现行 ASTM D4977/D4977M-20
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Standard Test Method for Granule Adhesion to Mineral-Surfaced Roofing by Abrasion 用磨损法测定矿物表面屋顶颗粒粘附性的标准试验方法
发布日期: 2020-05-01
1.1 本试验方法涵盖了因磨损而对矿物表面屋顶颗粒粘附力的测定。 1.2 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。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。 1.3 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。 1.4 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====== 3.1 本试验方法用于测定矿物表面屋顶样品中颗粒表面与涂层沥青的粘附质量。结果确定是否符合适用规范要求或进行比较分析。本试验方法适用于“制造”材料,可能不适用于有风化暴露的材料。
1.1 This test method covers the determination of granule adhesion to mineral-surfaced roofing due to abrasion. 1.2 The values stated in either SI units or inch-pound 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 nonconformance with the standard. 1.3 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. 1.4 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 ====== 3.1 This test method is used to determine the quality of adhesion of the granular surfacing to the coating asphalt in a sample of mineral-surfaced roofing. The results determine compliance with the applicable specification requirements or for comparative analysis. This test method applies to “as manufactured” material and may not be applicable to material that has had weathering exposure.
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归口单位: D08.02
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