Home / Glossary GlossaryLearn more about terms used within safety, maintenance and field services. Acid Number (AN) Analytical Ferrography Asset Availability Asset Criticality Ranking (ACR) Asset Hierarchy Asset Life Cycle Asset Maintainability (AM) Asset Management Asset Performance Management (APM) Asset Reliability Autonomous Maintenance Bathtub Curve Bearing Isolator Boundary Lubrication Cavitation Load More