Set of established criteria, or limits, beyond which a device or process should not be operated.
Source: ISO 16530-1:2017, Petroleum and natural gas industries — Well integrity – Part 1: Life cycle governance, First Edition, March 2017. Global Standards
Set of limits for a section of line or vessel established to prevent over-pressuring.
Source: IADC UBO / MPD Glossary, December 2011. Global Standards