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Standard Test Method for Ignition Loss of Glass Fiber Strands and Fabrics 玻璃纤维原丝和织物着火损失的标准试验方法
发布日期: 2022-06-01
1.1 本试验方法主要包括测定玻璃纤维织物的燃烧损失。该方法适用于扭曲或未扭曲、涂覆或未涂覆的玻璃纤维股;和织物、机织物、非织造物、针织物、涂层物、未涂层物和短切原丝。该程序可适用于其他需要通过燃烧损失获得有机物含量的玻璃织物。 注1: 本试验方法可用于其他玻璃纤维分类,如C或D,但可能需要不同的点火温度和暴露时间。在这些情况下,应咨询制造商以了解适当的点火条件。 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。 1.3 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====== 5.1 由于实验室间精度的当前估计值是可接受的,因此该测试方法被认为是商业装运验收测试的满意方法。 5.1.1 如果使用本测试方法进行商业装运验收测试时,由于报告测试结果的差异而产生争议,买方和供应商应进行比较测试,以确定其实验室之间是否存在统计偏差。建议为调查偏差提供称职的统计协助。作为最低要求,双方应尽可能均匀地从大量相关类型的材料中选取一组试样。然后,应将试样以相同数量随机分配给每个实验室进行测试。 两个实验室的平均结果应使用学生的 t -测试未配对数据和双方在测试开始前选择的可接受概率水平。如果发现偏差,必须找到并纠正其原因,或者买方和供应商必须同意根据已知偏差解释未来的测试结果。 5.2 玻璃纤维纺织品具有各种尺寸或涂层。这为可能构成玻璃纤维织物的单个纤维、纱线或织物提供了保护,并与进一步的整理要求兼容。本程序确定的玻璃纤维织物上浆量或涂层量用于过程控制。
1.1 This test method covers primarily the determination of ignition loss of glass fiber textiles. This method applies to glass fiber strands, twisted or untwisted, coated or uncoated; and fabrics, woven, nonwoven, knitted, coated, and uncoated, and chopped strand. This procedure may be applied to other glass textiles where the amount of organic content obtained by ignition loss is required. Note 1: This test method may be used with other glass fiber classifications, such as C or D, but a different ignition temperature and exposure time may be required. In these cases the manufacturer should be consulted for the appropriate ignition conditions. 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 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. 1.3 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 ====== 5.1 This test method is considered satisfactory for acceptance testing of commercial shipments because current estimates of between-laboratory precision are acceptable. 5.1.1 In cases of a dispute arising from differences in reported test results when using this test method for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens which are as homogeneous as possible and which are from a lot of material of the type in question. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using Student's t -test for unpaired data and an acceptable probability level chosen by the two parties before the testing begins. If a bias is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results in the view of the known bias. 5.2 Glass fiber textiles are provided with various sizings or coatings. These provide a protection for the individual fibers, yarns, or fabric that may compose the glass fiber textile as well as compatibility with further finishing requirements. The amount of sizing or coating on glass fiber textiles as determined by this procedure is used for process control.
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归口单位: D13.18
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