1.1本规范涵盖了新的可重复使用金属（开槽角）板条箱的材料和制造，该板条箱用作国内和海外装运轻型机身组件和轻型散装物品的容器，国内或海外空运和水陆运输不超过3000 lb[1361 kg]。 1.2开槽角板条箱的性能取决于其制造的部件；因此，规定了反映不同性能的各种类型、类别和风格。然而，本规范不涵盖开槽角板条箱在所有大气、搬运、运输和储存条件下的性能。 1.3如果可接受并允许使用其他施工方法或技术（见5.1.12），则产生的包装系统的性能应与使用这些指定材料和程序产生的性能相同或更好。实践中规定的适当分配周期 D4169 可用于制定比较程序和标准。 1.4以英寸-磅或国际单位制表示的数值应单独视为标准值。在文本中，国际单位显示在括号中。每个系统中规定的值不是精确的等价物； 因此，每个系统必须相互独立使用。将两个系统的值合并可能会导致不符合标准。看见 用于单位转换。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。标准使用者有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This specification covers the material and fabrication of new reusable metal (slotted angle) crates intended for use as containers for domestic and overseas shipment of lightweight airframe components and lightweight bulky items, not exceeding 3000 lb [1361 kg] for domestic or overseas air and surface shipments. 1.2 Slotted angle crate performance is dependent on its fabricated components; therefore, a variety of types, classes, and styles reflecting varied performance are specified. This specification, however, does not cover slotted angle crate performance under all atmosphere, handling, shipping, and storage conditions. 1.3 If the use of other construction methods or techniques are acceptable and permitted (see 5.1.12), the resulting packaging systems shall be of equal or better performance than would result from the use of these specified materials and procedures. The appropriate distribution cycle specified in Practice D4169 can be used to develop comparative procedures and criteria. 1.4 The values stated in either inch-pound or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. See for conversion of units. 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 the standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.