Asme Ptc 19.2 Pdf [new] -

| Requirement | Specification | | :--- | :--- | | | Instrument uncertainty must be ≤ 1/3 of the allowable test tolerance on pressure. | | Manometer Fluid | Use distilled water, mercury (rarely now), or calibrated oils. Density must be known to ±0.05%. | | Transducer Linearity | Must be determined by a 5-point calibration (0, 25, 50, 75, 100% of span). | | Static Pressure Taps | Must be flush with the inner wall of the pipe, with no burrs or edges (for flow tests). |

Guidance on instrument selection, installation, calibration, and uncertainty analysis for pressure measurements asme ptc 19.2 pdf