1.1 本规范涵盖了专为攀爬和登山运动设计的钩环的六项机械试验和最低性能要求。 1.2 本标准定义了两种不同类型的钩环，即非锁定钩环和锁定钩环。 1.3 此处包含的测试具有破坏性。进行任何此类测试的钩环在测试后不得以任何方式使用，除非用于评估此类测试的结果。 1.4 本规范并不意味着批准使用攀爬和登山钩环的任何方法。此外，本文中包含的测试载荷值不得解释为攀爬和登山钩环在实际现场使用中可能承受或预期承受的力。 1.5 本规范仅限于钢或铝合金制成的钩环。 1.6 以国际单位制表示的数值应视为标准值。国际单位制后括号中给出的值仅供参考，不被视为标准值。 1.7 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。

1.1 This specification covers six mechanical tests and the minimum performance requirements for carabiners designed specifically for the sports of climbing and mountaineering. 1.2 Two different types of carabiners are defined in this standard, non-locking carabiners and locking carabiners. 1.3 Tests contained herein are destructive in nature. Carabiners subjected to any of these tests shall not be used in any way after testing except in evaluating the results of such testing. 1.4 This specification does not imply approval of any method of use of climbing and mountaineering carabiners. In addition, the test load values contained herein are not to be interpreted as the forces which a climbing and mountaineering carabiner may be subjected to, or expected to sustain in actual field use. 1.5 This specification is limited to carabiners made of steel or aluminum alloys only. 1.6 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 1.7 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.