Research Article
On the Suitability of Vibration Acceptance Criteria of Process Pipework
Table 5
Classification of cases and the number of cases in each category (1-sigma results, 68.27% confidence).
| Category | Description | Number of cases |
| OO | OK vibration, OK stress | 1048 | OC | OK vibration, CONCERN stress | 72 | OP | OK vibration, PROBLEM stress | 88 | CO | CONCERN vibration, OK stress | 87 | CC | CONCERN vibration, CONCERN stress | 54 | CP | CONCERN vibration, PROBLEM stress | 128 | PO | PROBLEM vibration, OK stress | 0 | PC | PROBLEM vibration, CONCERN stress | 1 | PP | PROBLEM vibration, PROBLEM stress | 122 | Total | 1600 |
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