本文件规定了类型、标称尺寸、尺寸和材料以及结构， 用于引导系泊和牵引的巴拿马楔块的制造和标记要求 船上的绳子。它适用于通过巴拿马运河的船舶，通常需要协助 通过使用钢制牵引线的机车和/或拖船穿过船闸。这些楔子相遇了 正常系泊要求和巴拿马运河要求；它们适用于系泊船舶 巴拿马运河船闸内。 购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies the types, nominal sizes, dimensions and materials, as well as construction, manufacturing and marking requirements, for Panama chocks installed to lead the mooring and towing rope of a ship. It is intended for ships passing through the Panama Canal, which are normally assisted through the locks by locomotives using steel towing wires and/or by tug boats. These chocks meet normal mooring requirements and Panama Canal requirements; they are suitable for mooring vessels inside the Panama Canal locks.All current amendments available at time of purchase are included with the purchase of this document.