Experts think that the first vessels to use ammonia in their engines will be chemical tankers, because they already carry it in their cargo holds.

专家认为第一批使用氨气引擎的货轮会是化学品运输船，因为它们运输的货物里面已经包含了氨气。

Part B covers construction and equipment of ships carrying dangerous liquid chemicals in bulk and requires chemical tankers built after 1 July 1986 to comply with the International Bulk Chemical Code (IBC Code).

B部分涵盖散装运输危险液体化学品船舶的构造和设备，并要求1986年7月1日之后建造的化学品船符合《国际散装化学品规则》（IBC规则）。