Using safety integrity levels(SIL)offers different,perhaps more flexible,means of assessing risk and augmenting safety at discrete manufacturing sites.Look at risk early and often.

• 运用安全完整性等级(SIL)提供了不同的、也许是更加灵活的手段来评估风险程度,加强离散制造业现场的安全性。需要及早并且经常考虑到风险的因素。