In addition, a high-integrity connection also known as a Diameter Index Safety System(DISS) connection has been assigned to oxygen service; medical post-type valves are assigned a yoke connection.

• 另外，指定了一种被称为直径指数安全系统（DISS）的高完整性接头用于氧设施；医用柱状阀门被指定使用卡箍接头。