规定了一般用途钢梯的尺寸、设计和结构、材料和表面处理，钢梯与船舶结构的垂直角度不超过15°，用于人员从一层移动到另一层。这些梯子可用于进入货舱、桅杆、漏斗、行李箱或甲板货舱内部。交叉引用:BS 499:第2部分*BS 729*BS 1856*BS 4360*

Specifies the dimensions, design and construction, materials and finish for general purpose steel ladders, attached to the ships' structure at an angle not exceeding 15° to the vertical and intended for the movement of personnel from one level to another. These ladders may be used for access to holds, masts, funnels, trunks or inside deck cargo spaces.Cross References:BS 499:Part 2*BS 729*BS 1856*BS 4360 *