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Standard Test Method for Resistance to Abrasion of Resilient Floor Coverings Using an Abrader with a Grit Feed Method 使用磨粒机进行耐磨性的标准试验方法
发布日期: 2020-05-01
1.1 本试验方法 2. 描述了一种实验室程序,用于使用带砂给料机的研磨机测定弹性地板的耐磨性。 3. 1.2 本试验方法中使用的设备是对泰伯研磨机的改进。常规的研磨轮被皮革包覆的黄铜轮(滚轴)所取代。当样本架旋转时,在砂粒穿过覆皮黄铜轮之前,砂粒供给装置将氧化铝砂粒分配到样本上。当试样旋转时,车轮和磨料的摩擦磨损作用会导致试样磨损。使用仪器中的真空系统,在通过两个车轮后,去除使用过的砂砾和磨损材料。 1.3 本试验方法采用由松散磨料和两个研磨轮引起的旋转摩擦作用。 一个轮子从中心向外摩擦试样,另一个轮子从外部向中心摩擦试样。轮子穿过一个完整的圆,并在所有角度对旋转的试样产生研磨作用。这个动作接近人转弯时鞋子和地板之间的扭转动作。松散砂砾的使用起到研磨剂的作用,也有助于正常行走的滚动动作特征。 1.4 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不一定是精确的等价物;因此,为确保符合本标准,每个系统应独立使用,且两个系统的值不得组合。 1. 5. 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。 1.6 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====== 4.1 在正常使用交通条件下,地板材料会受到细硬颗粒破坏作用造成的磨损。 当交通物体(即鞋子和地板表面)之间存在松散碎片、污垢和其他颗粒物时,就会出现这种情况。在持续暴露于“研磨作用”下,地板材料可能会遭受足以降低其使用寿命的厚度损失。 4.2 弹性地板覆盖物的耐磨性测量可能很复杂,因为耐磨性受到许多因素的影响。这些可能包括地板覆盖物表面材料的物理特性,特别是其硬度和弹性;添加物质的类型和程度,如填料和颜料;试样的表面特征,例如压花的类型、深度和数量。它还可能受到试验条件的影响,包括磨料的类型和特性,以及磨料如何作用于被磨损的试样区域; 试样和覆皮黄铜轮之间的压力;和真空抽吸。 4.3 该测试方法旨在模拟地板在现场可能遇到的一种研磨作用和研磨剂。然而,结果不应用作最终寿命的绝对指数,因为如前所述,有太多的因素和相互作用需要考虑。还涉及许多不同类型的服务地点。因此,本试验方法的数据主要在材料开发中有价值,不应在没有资格的情况下用作商业比较的基础。
1.1 This test method 2 describes a laboratory procedure for determining the abrasion resistance of resilient flooring using an abrader with a grit feeder. 3 1.2 The equipment used in this test method is a modification of the Taber abraser. The regular abrading wheels are replaced by leather clad brass wheels (rollers). As the specimen holder rotates, a grit-feeding device dispenses aluminum oxide grit onto the specimen before the grit passes under the leather clad brass wheels. As the specimen rotates, the rub-wear action of the wheels and abrasive grit causes abrasion on the test piece. Using the vacuum system incorporated in the apparatus, the used grit and abraded material are removed after passing under both wheels. 1.3 This test method employs a rotary, rubbing action caused by loose abrasive grit and the two abrading wheels. One wheel rubs the specimen from the center outward and the other from the outside toward the center. The wheels traverse a complete circle and have an abrasive action on the rotating specimen at all angles. This action approaches the twisting action between shoe and floor that occurs when a person turns. The use of loose grit serves the function of an abradant and also aids in the rolling action characteristic of normal walking. 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.5 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. 1.6 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 ====== 4.1 When subjected to normal in-use traffic conditions, a flooring material is exposed to abrasion caused by the destructive action of fine hard particles. This situation occurs whenever loose debris, dirt and other particulate matter exists between traffic bodies (that is, shoes and a flooring surface). Under continuing exposure to an “abrasive action,” a flooring material may suffer a thickness loss sufficient to reduce its service life. 4.2 Abrasion resistance measurements of resilient floor coverings can be complicated since the resistance to abrasion is affected by many factors. These may include the physical properties of the material in the floor covering surface, particularly its hardness and resilience; type and degree of added substances, such as fillers and pigments; surface characteristics of the specimen, such as type, depth, and amount of embossing. It can also be affected by conditions of the test, including the type and characteristics of the abradant and how it acts on the area of the specimen being abraded; pressure between the specimen and leather clad brass wheels; and vacuum suction. 4.3 This test method is designed to simulate one kind of abrasive action and abradant that a flooring may encounter in the field. However, results should not be used as an absolute index of ultimate life because, as noted, there are too many factors and interactions to consider. Also involved are the many different types of service locations. Therefore, the data from this test method are of value chiefly in the development of materials and should not be used without qualifications as a basis for commercial comparisons.
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归口单位: F06.20
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