Large Turbomachinery Vibration Evaluation Evidence Worksheet
Organize scope, measurement and source evidence for external review against ISO 20816-2:2017 with Amendment 1:2024. This worksheet checks documentation completeness only; it does not generate a vibration zone, diagnosis, alarm or operating instruction.
Evaluation-evidence record
What the official public record establishes
Standard and source register
| ID | Source and lifecycle | Verified public support | Not supported publicly |
|---|---|---|---|
| S1 | ISO 20816-2:2017 Edition 1 · confirmed 2023 · current | Machine, output, bearing, exact-speed, position/direction, operating-state and exclusion scope. | Closed numerical zones, change criteria, bands, processing and operating-limit procedure. |
| S2 | ISO 20816-2:2017/Amd 1:2024 Edition 1 · published 2024-06 | A current amendment exists and applies to the 2017 base. | The public card does not reveal the technical change or validate old numbers. |
| S3 | ISO 7919-2:2009 and ISO 10816-2:2009 lifecycle Withdrawn predecessors | Official lifecycle relationship to ISO 20816-2:2017. | No proof that withdrawn tables or wording are unchanged after consolidation and amendment. |
Review notes
Why does this page no longer output Zone A, B, C or D?
The former six boundaries lacked a checked licensed base-plus-amendment source, exact measurement configuration, operating state, processing and boundary convention. A numeric zone would therefore be unsupported.
Does 1 500 to 3 600 r/min describe the scope?
No. The official public scope lists four discrete rated speeds: 1 500, 1 800, 3 000 and 3 600 r/min. Other rated speeds are explicitly outside this part’s stated scope.
Does the worse of housing and shaft readings automatically govern?
No such universal shortcut was verified from the public record. The licensed procedure, applicable position/direction criteria, change criteria, machine configuration and site/manufacturer rules must be applied by a qualified reviewer.
Can this worksheet recommend continued operation, load reduction or shutdown?
No. Operational decisions require plant protection logic, site and manufacturer limits, trend and corroborating evidence, the licensed base standard plus amendment, and accountable engineering review.
Source access: 17 July 2026. No closed ISO clause, amendment text, table, coefficient or numeric boundary is copied or inferred. The previous six boundaries, automatic zones, diagnostic messages and operating instructions were removed because their current normative basis was not verified.
