规定了起重用通用滑轮组的要求。附录中给出了查询和订单中应提供的信息、保养和使用以及非起重应用的使用指南。

Specifies requirements for general purpose sheave blocks for lifting purposes. Guidance on information that should be supplied with enquiries and orders, on care and use and on use for non-lifting applications, is given in appendices.