| Abbreviation | Definition |
|---|---|
| PSI | Pounds per Square Inch |
| PSI | Process and Systems Integration |
| PSMR | Photonic Systems Manufacturing Roadmap |
| PTC | Parametric Technology Corporation |
| PTM | Precision Tool Manufacturing |
| PTPF | Partial Total Power Failure |
| P-TPM | Producibility - Technical Performance Measure |
| PUMC | Preferred Utilities Manufacturing Corporation |
| PUPWS | Pure and Ultrapure Water System |
| PVF | Polyvinylflouride |
| PW | Produced Water |
| PWHS | Post-Welded Heat Stress |
| PWRI | Produced Water Re-Injection |
| QAN | Quality Alert Notice |
| QAQ | Quality and Quantity |
| QAR | Quality Assurance Review |
| QE | Quality Engineer |
| QEM | Quality in Electronic Manufacturing |
| QFD | Quality function deployment |
| QI | Quality Integration |