船舶携带的压载水在装卸作业期间保持船舶直立，并在航行期间提供平衡、稳定性和纵倾。由于压载水来自周围港口或沿海水域，压载水中的生物体有时会建立种群，导致生物入侵，这可能会产生严重的生态或经济影响。本标准旨在测试处理水长期加速暴露对涂层系统的影响。

Ballast water carried by ships keeps them upright during loading and offloading operations and provides balance, stability, and trim during sailing. Because ballast water is loaded from the surrounding port or coastal waters, organisms in the ballast water sometimes establish populations resulting in biological invasions, which may have severe ecological or economic impacts. This standard is designed to test the effect of long-term accelerated exposure of treated water on coating systems.