1.1 本试验方法包括从硫化橡胶块中拉出钢丝绳所需力的测定。 1.2 虽然该测试方法主要是为钢丝帘线设计的，但也可以通过修改应用于橡胶产品中使用的钢丝。 1.3 该测试方法也可用于评价橡胶化合物与钢帘线的粘合性能。 1.4 以SI单位表示的值应被视为标准。本标准不包括其他计量单位。 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 认为该试验方法对于商业运输钢丝帘线的验收试验是令人满意的，因为目前对单一材料的实验室间精密度的估计被认为是可接受的，并且该方法已在验收试验行业中广泛使用。 5.1.1 如果两个（或多个）实验室报告的检测结果之间存在差异或实际意义，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。至少，应使用尽可能均匀的试验样品，这些样品取自获得不同试验结果的材料，并以相等的数量随机分配给每个实验室进行试验。具有既定测试值的其他材料可用于此目的。两个实验室的检测结果应在检测系列之前选择的概率水平上，使用不成对数据的统计检验进行比较。如果发现偏差，要么必须找到并纠正其原因，要么必须考虑已知偏差调整未来的测试结果。 5.2 本试验方法中描述的模具主要设计用于钢帘线的质量验收试验，其中每根帘线的样品尺寸为4或其倍数，但任何模具/型腔组合都将提供所需的试块尺寸（ 图1和 2 ）是可以接受的。 除非另有说明 附注1: 除非另有说明，所有尺寸均以毫米为单位。 附注2: 材料-低碳钢。 附注3: 模具应永久涂覆聚四氟乙烯，如特氟隆®，或优选涂覆不锈钢增强聚四氟乙烯与聚酰胺粘合剂，如Excalibur®。 4 附注4: 带“*”的尺寸可以改变以适应测试把手。 5.3 附录X1 包含老化测试的建议环境条件范围。 5.4 通过该测试方法测量的性能表明钢帘线与橡胶的粘附力是否大于橡胶的内聚力，即钢帘线完全被橡胶覆盖，或者小于橡胶的内聚力，即没有被橡胶覆盖。

1.1 This test method covers the determination of the force required to pull a steel cord from a block of vulcanized rubber. 1.2 Although designed primarily for steel cord, this test method may be applied with modifications to wire used in rubber products. 1.3 This test method can also be used for evaluating rubber compound performance with respect to adhesion to steel cord. 1.4 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this 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 This test method is considered satisfactory for the acceptance testing of commercial shipments of steel tire cord because current estimates of between-laboratory precision for single materials are considered acceptable and the method has been used extensively in the trade for acceptance testing. 5.1.1 If there are differences or practical significances 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, the test samples should be used that are as homogenous as possible, that are drawn from the material from which the disparate test results were obtained, and that are randomly assigned in equal numbers to each laboratory for testing. Other materials with established test values may be used for this purpose. The test results from the two laboratories should be compared using a statistical test for unpaired data, at a probability level chosen prior to the testing series. If a bias is found, either its cause must be found and corrected, or future test results must be adjusted in consideration of the known bias. 5.2 The mold described in this test method is primarily designed for quality acceptance testing for steel cord where the sample size for each cord is 4 or a multiple thereof, but any mold/cavity combination which will provide the required test block dimensions ( Figs. 1 and 2 ) is acceptable. Except where noted Note 1: All dimensions in millimetres except where noted. Note 2: Material—Mild steel. Note 3: Mold should be coated permanently with a polytetrafluoro-ethylene, such as Teflon®, or preferably, with a stainless steel reinforced polytetrafluoro-ethylene with a polyamid binder, such as Excalibur®. 4 Note 4: Dimensions with “*” may be altered to accommodate test grips. 5.3 Appendix X1 contains suggested ranges of environmental conditions for aging tests. 5.4 The property measured by this test method indicates whether the adhesion of the steel cord to the rubber is greater than the cohesion of the rubber, that is, complete rubber coverage of the steel cord, or less than the cohesion of the rubber, that is, lack of rubber coverage.