1.1 这些试验方法包括在拉伸载荷下对溢油响应吊杆强度的静态实验室试验。 1.2 以英寸磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 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）。本标准的使用者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。 有关具体的危险说明，请参阅第节 7. 。 1.4 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 在拖过水面到达泄漏现场之前，吊杆部分通常被组合成数百米长的组合。长吊杆组件在水中移动的摩擦力会对拖船附近的吊杆节段施加高拉伸应力。 5.2 在扫掠模式下拖曳动臂时，也会在动臂中设置拉力。这种拉力的大小可能与吊杆的浸入深度、所涉及的吊杆长度、两艘拖船形成的弯曲宽度以及移动速度有关。 注1: 当牵引速度超过约1节（0.5 m/s）时，动臂下会损失大量机油。 5.3 了解最大和允许的工作拉伸应力将有助于为给定应用选择吊臂，并允许为任何给定吊臂指定安全牵引和锚固条件。

1.1 These test methods cover static laboratory tests of the strength of oil spill response boom under tensile loading. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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. For a specific hazard statement, see Section 7 . 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 Boom sections are frequently combined into assemblages hundreds of meters in length prior to towing through the water to a spill site. The friction of moving long boom assemblages through the water can impose high tensile stresses on boom segments near the tow vessel. 5.2 Tensile forces are also set up in a boom when it is being towed in a sweeping mode. The magnitude of this tensile force can be related to the immersed depth of the boom, the length of boom involved, the width of the bight formed by the two towing vessels, and the speed of movement. Note 1: When the towing speed exceeds about 1 knot (0.5 m/s), substantial oil will be lost under the boom. 5.3 Knowledge of maximum and allowable working tensile stresses will help in the selection of boom for a given application and will permit specification of safe towing and anchoring conditions for any given boom.