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Standard Test Method for Wale and Course Count of Weft Knitted Fabrics 纬编织物的纬纱和课程计数的标准测试方法
发布日期: 2024-11-01
1.1 本试验方法包括纬编针织物经度和经度的测量。纬编针织物是在圆机或横机上制造的,包括单面和双面针织织物类别。单针织物的典型实例包括平针织物和单凸纹织物;典型的双面针织面料是罗纹、互锁和瑞士凸纹面料。 1.2 本试验方法不适用于经编或拉舍尔等经编织物。 1.3 Wale和课程计数将单独报告。 1.4 以英寸-磅单位表示的值应被视为标准。括号中给出的值是对SI单位的数学转换,仅供参考,不被视为标准。 1.5 本标准并不旨在解决与其使用相关的所有安全性问题(如果有)。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 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》中确立的国际公认的标准化原则制定的。 ======意义和用途====== 5.1 如果两个(或多个)实验室报告的检测结果之间存在具有实际意义的差异,则应使用合格的统计学辅助进行比较试验,以确定它们之间是否存在统计学偏倚。作为最低限度,确保所用测试样品尽可能均匀,并取自获得不同测试结果的材料。测试样本将以相等的数量随机分配到每个实验室进行测试。应使用未配对数据的统计检验,将参与实验室的检验结果与试验开始前选择的概率水平进行比较。如果发现偏差,应找出并纠正其原因,或根据已知偏差调整该材料的未来测试结果。 5.2 通过该测试方法获得的结果可用于确定织物是否符合质量标准中给出的织物支数公差 D3887 .
1.1 This test method covers the measurement of wale and course counts of weft knitted fabrics. Weft knit fabrics are made on circular or flat-bed knitting machines and include single- as well as double-knit fabric categories. Typical examples of single-knits include jersey and single-pique fabrics; typical double-knits are rib, interlock, and swiss pique fabrics. 1.2 This test method is not applicable to warp knit fabrics such as tricot or raschel. 1.3 Wale and course counts are to be reported separately. 1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 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 ====== 5.1 If there are differences of practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if there is a statistical bias between them using competent statistical assistance. As a minimum, ensure that the test samples to be used are as homogeneous as possible and drawn from the material from which the disparate test results were obtained. The test specimens are to be randomly assigned in equal numbers to each laboratory for testing. The test results from the participating laboratories should be compared using a statistical test for unpaired data to a probability level chosen before initiation of the testing. If a bias is found, either its cause shall be found and corrected, or future test results for that material shall be adjusted in consideration of the known bias. 5.2 The results obtained by this test method may be used to determine if fabrics meet the tolerances for fabric counts given in Specification D3887 .
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归口单位: D13.60
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